• Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    A net identifier used to create connectivity to other Net Portal with the same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
    jharwinbarrozo
    14.2k
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k
Q1
Manufacturer Part Number
LMR16030SDDAR
for COUT1 and 2 can I use a T495X477K010ATE100
ril3y

ril3y

@copilot for COUT1 and 2 can I use a T495X477K010ATE100
1y

copilot

The T495X477K010ATE100 is a tantalum capacitor from Kemet. It has a capacitance of 470uF, a voltage rating of 10V, and is packaged in a SMD_2917 case.
The capacitors COUT1 and COUT2 in your design are specified as 100uF capacitors. Therefore, the T495X477K010ATE100 with its 470uF capacitance is not a direct replacement for these capacitors.
Additionally, it's important to ensure that the voltage rating of the replacement capacitor is sufficient for your circuit. The T495X477K010ATE100 has a voltage rating of 10V. If your circuit requires a higher voltage, this capacitor would not be suitable.
Finally, the physical size and footprint of the capacitor need to be compatible with your PCB layout. The T495X477K010ATE100 is in a SMD_2917 package, so you would need to check if this footprint is compatible with your design.
So, while the T495X477K010ATE100 is a high-quality capacitor, it might not be suitable for your specific needs based on the provided information. Always double-check the specs and requirements of your design before making a part substitution.
1y
ril3y

ril3y

right but they would work, they just have a higher capaciance?
1y

copilot

Yes, using a capacitor with a higher capacitance than originally specified can often work, but it may also impact the performance of your circuit.
For the LMR16030SDDAR regulator circuit, the output capacitors (COUT1 and COUT2 in your design) play a key role in maintaining the stability of the output voltage. While a higher capacitance could potentially provide better voltage stability, it could also lead to issues such as:

  • Slower response to changes in load current.

  • Potentially higher inrush current at startup.

  • Depending on the ESR (Equivalent Series Resistance) of the capacitor, it could impact the stability of the regulator.

Also, the physical size and the voltage rating are also important considerations. The T495X477K010ATE100 capacitor has a 10V rating, which may not be sufficient depending on the input voltage to your regulator.
So while it might work, it's important to consider these factors and potentially simulate the circuit behavior with the new capacitor value to ensure that it meets your specific requirements.
1y
ril3y

ril3y

could this work instead C4532X6S0J107MT000N
1y

copilot

The C4532X6S0J107MT000N is a ceramic capacitor from TDK Corporation. It has a capacitance of 100uF, a voltage rating of 6.3V, and is packaged in a SMD_1812 case.
The capacitors COUT1 and COUT2 in your design are specified as 100uF capacitors, so the capacitance of the C4532X6S0J107MT000N matches your design specification.
However, you should consider the following points:

  1. Voltage Rating: The C4532X6S0J107MT000N has a voltage rating of 6.3V. Ensure that this is sufficient for your circuit. If your circuit requires a higher voltage, this capacitor would not be suitable.

  2. Package Size: The C4532X6S0J107MT000N comes in a SMD_1812 package. Ensure that this footprint is compatible with your PCB layout.

  3. Ceramic vs Electrolytic: The C4532X6S0J107MT000N is a ceramic capacitor, whereas the original capacitors in your design are not specified. Ceramic capacitors have different characteristics compared to electrolytic capacitors (such as ESR and ESL), which can affect the performance of the circuit.

Always double-check the specs and requirements of your design before making a part substitution. It's also a good idea to simulate the circuit behavior with the new capacitor value to ensure that it meets your specific requirements.
1y
ril3y

ril3y

The design sheet for this buck suggested GRM32EC80J107ME20L which i think the C4532X6S0J107MT000N is a decent replacement? Do you agree?
1y

copilot

Yes, the C4532X6S0J107MT000N from TDK Corporation is a good replacement for the GRM32EC80J107ME20L from Murata.
Here's why:

  1. Capacitance: Both capacitors have the same capacitance value of 100uF.

  2. Voltage Rating: Both capacitors have the same voltage rating of 6.3V.

  3. Dielectric Material: Both capacitors use X6S dielectric material, so they have similar temperature stability and loss characteristics.

  4. Size: Both capacitors come in a similar package size (1812 SMD), so the footprint should match.

As always, it's crucial to double-check the datasheets to ensure compatibility, especially if there are specific performance or reliability requirements in your design.
1y
if I wanted to enable or disable this buck converter how would I do this with th...
ril3y

ril3y

@copilot if I wanted to enable or disable this buck converter how would I do this with the EN pin?
1y

copilot

The EN (Enable) pin of the LMR16030SDDAR buck converter is used to turn the device on or off. Here's how you can control it:

  • To enable the buck converter (i.e., to turn it on), apply a voltage that is higher than the enable threshold voltage (V_EN) to the EN pin. According to the LMR16030SDDAR datasheet, the typical V_EN is 1.2V. So, you should apply a voltage higher than this.

  • To disable the buck converter (i.e., to turn it off), apply a voltage that is lower than the enable threshold voltage (V_EN) to the EN pin.

Please note, the voltage applied to the EN pin should not exceed the maximum rating specified in the datasheet. Also, if the EN pin is left open, the device may be in an undefined state. It is recommended that the EN pin be terminated, even if it is not being used to control the device.
1y
ril3y

ril3y

how much current does this pin sink? I am trying to figure out if I can turn it on via a GPIO on my microcontroller
1y

copilot

The Enable (EN) pin of the LMR16030SDDAR buck converter is a high-impedance digital input. The datasheet does not directly provide the current requirement for this pin. However, it is typically in the range of microamperes (µA) or less for such devices, which is within the sourcing/sinking capability of most microcontrollers' GPIO pins.
To be sure, you should consult the datasheet of the specific microcontroller you are using to verify that its GPIO pins can handle the control voltage and current requirements for the EN pin of LMR16030SDDAR.
However, in general practice, it should be safe to control the EN pin directly from a GPIO. For additional safety, you could add a series resistor (e.g., 1kΩ) between the GPIO pin and the EN pin to limit the current.
1y
ril3y

ril3y

so if I used a gpio and made that pin LOW it would be off. Can I have it normally on and then only the microcontroller could turn it off? Would I need a pullup resistor for this to work?
1y

copilot

Yes, you can certainly set up the circuit in this way. Here's how you can do it:

  1. Connect a pull-up resistor from the EN pin to the input voltage source. This will default the EN pin to a HIGH state, and the buck converter will be normally on.

  2. Connect the GPIO pin of the microcontroller to the EN pin. When you want to turn the buck converter off, make the GPIO pin output a LOW signal. This will pull the EN pin to a LOW state, turning the buck converter off.

The value of the pull-up resistor should be chosen such that it does not draw too much current from the power source when the GPIO is LOW. A common choice for the pull-up resistor value is between 10kΩ and 100kΩ.
Remember to ensure that the voltage level of the HIGH state of your microcontroller's GPIO pin is compatible with the voltage level expected by the EN pin of the buck converter.
Also, the GPIO pin should be set to output a LOW signal for off state, and should be set to high-impedance (input) state for on state. This way, when the GPIO is in high-impedance state, the pull-up resistor can pull the EN pin high and turn on the buck converter.
1y
ril3y

ril3y

the microcontroller is 3v3 and the input voltage is much higher. do you have an idea of how to accomplish what we talked about above with this new data?
1y

copilot

You can use a voltage divider to ensure that the voltage at the EN pin does not exceed the maximum allowable voltage for this pin. A voltage divider consists of two resistors. Here's how you can do it:

  1. Connect one resistor (R1) from the input voltage source to the EN pin.

  2. Then, connect a second resistor (R2) from the EN pin to the GPIO pin and to ground.

This arrangement will ensure that the voltage at the EN pin will be reduced to a safe level for the microcontroller when the GPIO pin is HIGH.
Here's how to calculate the resistor values:
The voltage at the EN pin (V_EN) can be calculated by the voltage divider rule:
V_EN = V_IN * (R2 / (R1 + R2))
Let's assume that you want to keep V_EN to be 3.3V when the GPIO is HIGH, and V_IN is higher than 3.3V (let's say 5V for this calculation).
If we choose R1 to be 10kΩ, we can rearrange the formula to solve for R2:
R2 = R1 * (V_EN / (V_IN - V_EN)) = 10kΩ * (3.3V / (5V - 3.3V)) = 10kΩ * 1.94 = 19.4kΩ
You can round R2 to the nearest standard resistor value, which would be 20kΩ.
Please note that these calculations are based on an assumed V_IN of 5V. If your V_IN is different, you should adjust the calculations accordingly. Also, this setup assumes that the GPIO pin is capable of sinking the current through the voltage divider when it goes LOW. Please ensure that your microcontroller's GPIO pin can handle this.
1y
5
can you recommend an alternative part for SBRD10200TR
ril3y

ril3y

@copilot can you recommend an alternative part for SBRD10200TR
1y

copilot

The SBRD10200TR is a Schottky diode from Diodes Incorporated with the following specifications:

  • Rectifier Type: Schottky

  • Voltage - DC Reverse (Vr) (Max): 200V

  • Current - Average Rectified (Io): 10A

  • Voltage - Forward (Vf) (Max) @ If: 0.98V @ 10A

  • Speed: Fast Recovery =< 500ns, > 200mA (Io)

  • Reverse Recovery Time (trr): -

  • Current - Reverse Leakage @ Vr: 500µA @ 200V

  • Capacitance @ Vr, F: -

  • Mounting Type: Surface Mount

  • Package / Case: TO-252-3, DPak (2 Leads + Tab), SC-63

Here are a few alternative parts that are similar:

  1. STPS20H100CT from STMicroelectronics: This is a 100V, 10A dual Schottky rectifier in a TO-220-3 package. Datasheet

  2. MBR20100CT from ON Semiconductor: This is a 100V, 20A dual Schottky rectifier in a TO-220-3 package. Datasheet

  3. MBRS10100CT from Fairchild/ON Semiconductor: This is a 100V, 10A dual Schottky rectifier in a TO-252-3, DPak (2 Leads + Tab), SC-63 package. Datasheet

Please note that while these alternatives have similar specifications, they may not be exact matches. Always verify the specifications and package compatibility of the alternative part with your circuit requirements before making a replacement.
1y
ril3y

ril3y

is there any in a smaller package?
1y

copilot

Sure, you can find similar Schottky diodes in smaller packages. Here are a few alternatives:

  1. PMGD290UN,115 from Nexperia USA Inc.: This is a 90V, 1A dual Schottky diode in a 6-TSSOP, SC-88, SOT-363 package. Datasheet

  2. BAS21HT,115 from Nexperia USA Inc.: This is a 200V, 0.2A dual Schottky diode in a 3-SOT-23 package. Datasheet

  3. BAT54CWT1G from ON Semiconductor: This is a 30V, 0.2A dual Schottky diode in a SC-70, SOT-323 package. Datasheet

Please note that these alternatives have smaller packages, but they also have different specifications. Always ensure that the replacement part meets your circuit's voltage, current, and speed requirements before making a replacement.
1y
ril3y

ril3y

it needs to be at least 4A
1y

copilot

I understand your requirement. Here are a few Schottky diodes in smaller packages which can handle at least 4A of current:

  1. PMDS10S120 from Nexperia: This is a 120V, 4.6A single Schottky diode in a 4-DFN package. Datasheet

  2. RB160VM-40TR from Rohm Semiconductor: This is a 40V, 4A single Schottky diode in a PMDU package. Datasheet

  3. SK54C-TP from Micro Commercial Co: This is a 40V, 5A single Schottky diode in a DO-214AB, SMC package. Datasheet

Please make sure to verify that the voltage rating and package of the chosen diode fit your application.
1y
ril3y

ril3y

it needs to be similar specs to SBRD10200TR and smaller
1y

copilot

Understood! Here are a few Schottky diodes with similar specifications to the SBRD10200TR but in smaller packages:

  1. VS-8TQ100SPBF from Vishay: This is a 100V, 8A single Schottky diode in a TO-277, 3-PowerVDFN package which is smaller than the original TO-252-3, DPak. Datasheet

  2. MBR1045CT-E3/45 from Vishay: This is a 45V, 10A dual Schottky diode in a TO-262-3 Long Leads, I²Pak, TO-262AA package, which is a bit smaller than the TO-252-3, DPak. Datasheet

  3. MBRD1045T4G from ON Semiconductor: This is a 45V, 10A dual Schottky diode in a smaller TO-252-3, DPak (2 Leads + Tab), SC-63 package. Datasheet

Please verify the specifications and package compatibility of the alternative part with your circuit requirements before making a replacement.
1y
ril3y

ril3y

VS-8TQ100SPBF is there a smd version of this?
1y

copilot

Yes, the VS-8TQ100SPBF from Vishay itself is an SMD (Surface Mount Device) component. It comes in a TO-277, 3-PowerVDFN package which is designed for surface mount applications.
Here is its Datasheet for more detailed information.
Please verify the package dimensions to make sure it fits in your design.
1y
ril3y

ril3y

STPS20H100CT is there a smd version o fthis?
1y

copilot

Yes, there is an SMD version of the STPS20H100CT. It's the STPS20H100CFP, which comes in the TO-220FP (Fully Plastic) package. This is a surface-mount variant of the TO-220 package.
Here is the Datasheet for more detailed information.
Please verify if the TO-220FP package fits your design requirements.
1y
ril3y

ril3y

would a SS510 be ok for D1?
1y

copilot

The SS510 is a Schottky Barrier Rectifier from Fairchild Semiconductor with the following specifications:

  • Rectifier Type: Schottky

  • Voltage - DC Reverse (Vr) (Max): 100V

  • Current - Average Rectified (Io): 5A

  • Voltage - Forward (Vf) (Max) @ If: 0.85V @ 5A

  • Speed: Fast Recovery =< 500ns, > 200mA (Io)

  • Reverse Recovery Time (trr): -

  • Current - Reverse Leakage @ Vr: 500µA @ 100V

  • Capacitance @ Vr, F: -

  • Mounting Type: Surface Mount

  • Package / Case: DO-214AA, SMB

Comparing this to the SBRD10200TR:

  • Rectifier Type: Schottky

  • Voltage - DC Reverse (Vr) (Max): 200V

  • Current - Average Rectified (Io): 10A

  • Voltage - Forward (Vf) (Max) @ If: 0.98V @ 10A

  • Speed: Fast Recovery =< 500ns, > 200mA (Io)

  • Reverse Recovery Time (trr): -

  • Current - Reverse Leakage @ Vr: 500µA @ 200V

  • Capacitance @ Vr, F: -

  • Mounting Type: Surface Mount

  • Package / Case: TO-252-3, DPak (2 Leads + Tab), SC-63

We see that the SS510 has a lower reverse voltage (100V vs 200V) and a lower average rectified current (5A vs 10A).
If your circuit does not require the higher reverse voltage and current handling capability of the SBRD10200TR, the SS510 could potentially work as a replacement. However, without knowing more about your specific application, it's impossible to say for sure. Always verify the specifications of the replacement part against the requirements of your circuit before making a substitution.
1y
ril3y

ril3y

i am not sure why this buck converter recommends so high voltages for D1. The max input is 56v and max output current is 3A.
1y

copilot

The diode in a buck converter experiences reverse voltage approximately equal to the input voltage. The specified maximum input voltage for LMR16030SDDAR is 60V, hence a diode with a reverse voltage specification above this value (e.g., 100V or 200V) is recommended to provide a safety margin.
The forward current specification of the diode should be at least equal to the maximum output current of the converter. In your case, a diode rated for more than 3A should be suitable.
Moreover, peak currents during transient conditions can be higher than the average output current. Therefore, it's always safe to choose components with ratings that provide sufficient margin above the maximum expected operating conditions.
In light of this, the SS510 with 100V reverse voltage and 5A forward current should be adequate for your application. However, it would be prudent to validate this with actual load and input conditions.
1y
2
PGND
PROJECT_ID: 10
Line 1
This is to keep track of my BOM
CIN2
Capacitance
3.3u F
VINPUT
FB
Cff
Capacitance
470p F
Cboot
Capacitance
100n F
VINPUT
Rt
Resistance
37.4k Ω
FB
PGND
Rfbt
Resistance
34k Ω
CIN1
Capacitance
3.3u F
VINPUT
Rfbb
Resistance
10k Ω
L1
Not Recommended for New Designs
Inductance
4.7u H
D2
PGND
Css
Capacitance
15n F
PGND

LMR16030SDDAR sublayout

LMR16030SDDAR sublayout
Description

Created
July 7th 2023
Last updated by ril3y
10 months ago
3 Contributor(s)
ril3y
giulioz
vasy_skral

Controls

Properties

Designator Prefix
SUBLAYOUT

Availability & Pricing

DistributorQty 1
Digi-Key$2.99–$6.23
LCSC$2.73–$2.79
Mouser$6.28

Assets

    Simulation

    µs

    Simulation Speed

    in the data sheet for Q1 there is a section about enabled and adjustable under ...
    ril3y

    ril3y

    @copilot in the data sheet for Q1 there is a section about enabled and adjustable under voltage lockout. Can you help me figure out how to shut down the buck converter when VIN hits 40v
    1y

    copilot

    The LMR16030SDDAR has an enable pin (EN) that can be used for controlling the operation of the device. In your case, you want the buck converter to shut down when VIN hits 40V.
    To achieve this, you will need to use an under-voltage lockout (UVLO) circuit. The UVLO circuit can be designed to output a low voltage (0V) once VIN hits 40V, which can be fed into the EN pin of the LMR16030SDDAR to turn off the device.
    Here is a simple UVLO circuit design using a voltage reference and a comparator:

    1. A voltage reference IC is used to generate a reference voltage.

    2. The VIN is divided down using a resistor divider network.

    3. The divided VIN and reference voltage are fed into a comparator.

    4. When the divided VIN falls below the reference voltage, the comparator's output goes low.

    5. This low output can be fed into the EN pin of the LMR16030SDDAR to shut down the buck converter.

    The resistor values for the divider network and the reference voltage should be chosen such that the comparator's output goes low when VIN is 40V. The exact values will depend on the specific comparator and voltage reference ICs used.
    Please note that this is a simplified explanation and the actual implementation may need additional components for stability and to protect the comparator's input from exceeding its maximum voltage rating.
    1y
    ril3y

    ril3y

    can I tie the en pin high to enable?
    1y

    copilot

    Yes, you can tie the EN (Enable) pin high to keep the LMR16030SDDAR always enabled. According to its datasheet, the LMR16030SDDAR device starts switching when the voltage at the EN pin is higher than 1.2V, and it stops switching when the voltage is lower than 1.1V.
    However, you should ensure that the voltage applied to the EN pin does not exceed the absolute maximum rating specified in the datasheet, which is 6V.
    If you're planning to apply a high voltage (like VIN), it would be safer to use a pull-up resistor to VIN and a series resistor to the EN pin to limit the current and voltage going into the EN pin. The values of these resistors should be chosen such that the voltage at the EN pin is safely below the maximum allowable limit.
    1y
    ril3y

    ril3y

    what is a good switching frequency to use
    1y

    copilot

    The optimal switching frequency for a buck converter like the LMR16030SDDAR depends on several factors including:

    • Input and output voltage.

    • Load current.

    • Desired efficiency.

    • Component size and cost.

    • EMI (Electromagnetic Interference) considerations.

    The LMR16030SDDAR can operate at a switching frequency from 200kHz to 2.5MHz.
    Here are some general guidelines:

    • Lower frequencies (<500kHz) are usually preferred for high-efficiency applications where size and cost are not a major concern.

    • Higher frequencies (>1MHz) are used when size and weight are critical, such as in portable devices, even though this may result in slightly lower efficiency due to increased switching losses.

    However, using higher switching frequencies also has some disadvantages:

    • It can lead to increased switching losses, reducing the overall efficiency of the converter.

    • It requires smaller value inductors and capacitors, which can be more expensive and have a lower current rating.

    • It can lead to increased EMI, which can be a problem in sensitive applications.

    In summary, the choice of switching frequency is a trade-off between efficiency, size, cost, and EMI. You should choose a frequency that best meets the needs of your specific application. If you are unsure, a good starting point is to use the default frequency recommended in the datasheet or application notes. For the LMR16030SDDAR, the typical switching frequency is 1MHz.
    1y
    ril3y

    ril3y

    what value should be RT then if 1mhz switching
    1y

    copilot

    The resistor RT is used to set the switching frequency of the LMR16030SDDAR. The datasheet provides a graph that you can use to determine the value of RT for a given switching frequency.
    If you want to set the switching frequency to 1MHz, the datasheet suggests a value of RT to be approximately 118kΩ.
    However, please note that the actual switching frequency may vary due to tolerances in the RT resistor and variations in the IC's internal circuitry. You can choose a standard resistor value that is close to the calculated value. The closest standard 1% resistor value to 118kΩ is 118kΩ itself.
    Keep in mind that to achieve the best performance and stability, it's recommended to follow the application circuit and guidelines provided in the datasheet.
    1y
    ril3y

    ril3y

    it looks like 23.3k
    1y

    copilot

    I apologize for the confusion. Yes, you are correct. If you're setting a switching frequency of 1MHz for the LMR16030SDDAR, the datasheet recommends an RT resistor value of approximately 23.3kΩ.
    Please note that resistor values can have a tolerance, and the actual switching frequency may vary slightly due to this tolerance and variations in the IC's internal circuitry. Therefore, you can choose a standard resistor value that's close to the calculated value.
    The closest standard 1% resistor value to 23.3kΩ is 23.2kΩ. This should be suitable for your application.
    1y
    ril3y

    ril3y

    what size of induction should l1 be with this frequency
    1y

    copilot

    The inductor value for the LMR16030SDDAR buck converter can be determined using the following formula given in the datasheet:
    L = (Vout * (Vin_max - Vout)) / (fsw * Vin_max * Iout_max * k)
    Where:

    • L is the inductor value

    • Vout is the output voltage

    • Vin_max is the maximum input voltage

    • fsw is the switching frequency

    • Iout_max is the maximum output current

    • k is a coefficient normally taken as 0.3 (30% ripple current)

    However, the datasheet does not provide the output current (Iout_max) for your application. Could you please provide this value?
    1y
    ril3y

    ril3y

    its 3A
    1y

    copilot

    Thank you for providing the output current. Assuming a maximum input voltage of 40V (as you mentioned earlier), an output voltage of 3.3V (as per your project component 3v3), and a switching frequency of 1MHz, we can substitute these values into the formula to find the inductor value.
    L = (3.3V * (40V - 3.3V)) / (1MHz * 40V * 3A * 0.3) L = 0.0033 H = 3.3 uH
    Therefore, an inductor value of approximately 3.3uH would be suitable for your application. However, you should also consider the inductor's current rating and ensure it can handle the maximum output current of 3A.
    Please note that this calculation is an approximation. The actual performance can vary due to factors such as inductor DC resistance, core losses, and variations in input voltage and load current. Always verify the performance with a prototype before finalizing the design.
    1y
    Can you help me find the parts needed to output 3v3 for the LMR16030SDDAR part?
    ril3y

    ril3y

    @copilot Can you help me find the parts needed to output 3v3 for the LMR16030SDDAR part?
    1y

    copilot

    Sure, to set up the LMR16030SDDAR for a 3.3V output, you'll need the following external components:

    1. Input capacitor (Cin): A ceramic capacitor of value 10uF, rated for your input voltage, is usually a good starting point.

    2. Output capacitor (Cout): A ceramic capacitor of value 22uF, rated for your output voltage, is usually a good starting point. The actual value can vary based on the desired ripple voltage and load current.

    3. Bootstrap capacitor (Cboot): A ceramic capacitor of value 0.1uF, rated for at least 25V. This capacitor provides the gate drive voltage for the high-side NMOS.

    4. Feedback resistors (R1, R2): These determine the output voltage of the regulator. According to the datasheet, you can use the following formula to calculate the values:
      R1 = 100k ohms (standard value)
      R2 = R1 * ((Vout/Vfb) - 1)
      Where Vout = 3.3V and Vfb = 0.8V (the feedback voltage for the LMR16030).
      Therefore, R2 = 100k * ((3.3/0.8) - 1) = 312.5k ohms. You can use a standard value of 316k ohms.

    5. Soft-start capacitor (Css): This capacitor sets the soft-start time and can be a small ceramic capacitor. A typical value might be 0.01uF.

    Please consult the LMR16030SDDAR datasheet for detailed design considerations. This includes considerations for layout, thermal management, and component selection, which are important for stable operation.
    1y
    ril3y

    ril3y

    Can you provide a good inductor for this?
    1y
    ril3y

    ril3y

    Can you describe how to wire this?
    1y

    copilot

    Sure, the inductor selection is a critical part of designing a switch-mode power supply. The inductor value and its current rating must be chosen carefully to ensure efficient operation.
    For the LMR16030SDDAR switching regulator, based on the datasheet, the recommended inductor value is between 4.7µH to 22µH. The choice of inductor can significantly affect critical performance factors such as efficiency, output ripple voltage, transient response, and loop stability.
    I recommend the following inductor:

    • Manufacturer: Wurth Elektronik

    • Part number: 74437346047

    • Inductance: 4.7µH

    • Current Rating: 5.8A

    • Package: SMD

    Please note that the inductor's current rating should be higher than the maximum load current to prevent the inductor from saturating. Also, the inductor should have a low DC resistance (DCR) to maintain high efficiency.
    Remember, the exact choice of inductor may need to be optimized for your specific application and layout. Always verify the choice of inductor in your final design with appropriate testing and validation.
    You can find more details about this inductor from the manufacturer's datasheet.
    1y

    copilot

    Sure, below is a basic wiring guide for the components based on the project components and netlist provided. Please note, it's crucial to follow good PCB layout practices for a switching regulator to ensure stable operation.

    1. Q1 (LMR16030SDDAR):

      • Connect the VIN pin to the VINPUT terminal.

      • Connect the GND pin to the GND terminal.

      • The SW pin is the switch node of the regulator and will connect to one end of the inductor L1 (Not yet specified).

      • The BOOT pin will connect to one terminal of the bootstrap capacitor C3. The other terminal of C3 connects to the SW pin.

      • The FB pin connects to a network made up of two resistors R1 and R2. This network also connects to the output voltage, which is the other end of the inductor L1.

      • The SS pin connects to the soft-start capacitor C4.

      • The RT/SYNC pin is typically used for frequency synchronization or to set the switching frequency of the regulator. If unused, consult the datasheet for the recommended connection.

      • The EN pin is the enable pin. It can be driven high to enable the regulator or low to disable it. If always enabled, it can be tied directly to VIN.

    2. C1 (Input Capacitor): Connect one terminal of C1 to the VIN pin of Q1 and the other terminal to the GND terminal.

    3. C2 (Output Capacitor): Connect one terminal of C2 to the GND terminal and the other to the non-switched end of the inductor L1. This node also connects to the FB pin through the network of resistors R1 and R2.

    4. R1 and R2 (Feedback Resistors): Connect R1 between the output voltage (non-switched end of L1) and the FB pin of Q1. Connect R2 between the FB pin and the GND terminal.

    5. C3 (Bootstrap Capacitor): Connect one terminal of C3 to the BOOT pin of Q1 and the other terminal to the SW pin.

    6. C4 (Soft-start Capacitor): Connect one terminal of C4 to the SS pin of Q1 and the other terminal to the GND terminal.

    7. Inductor L1: Connect one end of L1 to the SW pin of Q1 and the other end to the output voltage. The output voltage node is the connection point of C2, R1, and the FB pin of Q1.

    Remember, this is a basic guide and your actual schematic and PCB layout might need additional components or considerations based on your specific application requirements. Always refer to the datasheet or application notes provided by the manufacturer for more detailed guidelines.
    1y
    ril3y

    ril3y

    would this inductor work SPM6550T-4R7M-HZ
    1y

    copilot

    The inductor you specified, SPM6550T-4R7M-HZ, appears to be a suitable choice for your application. Here are its key specifications:

    • Manufacturer: AEM

    • Part Number: SPM6550T-4R7M-HZ

    • Inductance: 4.7 µH

    • Current Rating: 4.3 A

    • Package: SMD

    The inductance value falls within the recommended range for the LMR16030SDDAR, and its current rating should be sufficient for most applications. However, please ensure that the current rating is above the maximum load current of your specific application.
    Keep in mind that the physical size and pad layout of the inductor must also fit within your PCB design constraints.
    Please refer to the datasheet for more detailed specifications and information.
    1y
    ril3y

    ril3y

    what value should be Rt resistor
    1y

    copilot

    The RT resistor is used to set the switching frequency of the LMR16030 regulator. According to the LMR16030 datasheet, the relation between the switching frequency (fSW) and RT is given by the following equation:
    fSW = 0.925 / RT
    Where:

    • fSW is the switching frequency in MHz

    • RT is the resistance in kΩ

    If you have a specific switching frequency in mind, you can rearrange the equation to solve for RT:
    RT = 0.925 / fSW
    For example, if you wanted a switching frequency of 500 kHz (or 0.5 MHz), you would calculate the RT resistor value as follows:
    RT = 0.925 / 0.5 = 1.85 kΩ
    Please note that the actual switching frequency can vary due to tolerances in the RT resistor value and variations in the internal oscillator. It's also important to select a standard resistor value that is close to the calculated value and available in the market.
    Always refer to the LMR16030 datasheet for detailed guidance on selecting the RT resistor value and other design considerations.
    1y
    ril3y

    ril3y

    is there a default switching frequency that I can leave alone?
    1y

    copilot

    The LMR16030SDDAR regulator does not have a default switching frequency that it will use if you don't set one. The switching frequency is set by the RT resistor. If you leave the RT/SYNC pin floating (not connected), the switching frequency will be unpredictable, which could lead to unstable operation or damage to the regulator.
    If you don't have a specific switching frequency in mind, a typical value used in many applications is 500 kHz. This provides a good balance between efficiency and the size of the external components. If you choose this frequency, the RT resistor value would be approximately 1.85 kΩ as calculated in the previous response.
    Keep in mind that the exact value you choose depends on your specific application requirements, including efficiency, noise considerations, and the size and cost of the external components. Always refer to the LMR16030SDDAR datasheet for detailed guidance on setting the switching frequency.
    1y
    ril3y

    ril3y

    is R1 RfBT or RfBB
    1y

    copilot

    In the context of the LMR16030SDDAR regulator, R1 and R2 create a voltage divider for the feedback network. According to the typical application circuit in the datasheet, the resistor connected to the output voltage (Vout) is usually denoted as RfBT and the one connected to ground is denoted as RfBB.
    In your case, if you're following the same convention, R1 would be RfBT. This assumes that R1 is connected between the output voltage and the FB pin of the regulator, and R2 is connected between the FB pin and ground.
    Remember, the exact names for the resistors can vary depending on the source of your schematic or design guidelines. Always refer to the specific connections and roles of the components rather than the names alone.
    1y
    ril3y

    ril3y

    what zeener diode should I use?
    1y

    copilot

    The choice of Zener diode depends on the specific application where you plan to use it. Zener diodes are often used for voltage regulation, voltage reference, or protection against voltage spikes. Here are a few questions that can help determine the right Zener diode:

    1. Reverse Breakdown Voltage: What is the voltage you want the Zener diode to clamp to? This is the most important property of a Zener diode and is the voltage at which it begins to conduct in the reverse direction.

    2. Power Dissipation: What is the power requirement of your circuit? Zener diodes come in different power dissipation ratings, commonly ranging from 500mW to 5W.

    3. Tolerance: How precise do you need the Zener voltage to be? Zener diodes have a tolerance rating which indicates how closely the diode's actual Zener voltage matches the specified Zener voltage.

    4. Package: What package type best fits your circuit layout? Common package types include DO-35 for through-hole and SOD-123 for surface-mount.

    If you provide the specifics of your application, I may be able to give a more precise recommendation. If the Zener diode is meant for the LMR16030 regulator circuit, Texas Instruments does not mention a Zener diode in their typical application circuit, so further details would be needed to provide a recommendation.
    1y
    ril3y

    ril3y

    in the datasheet it shows a D by the inductor can you recommend one
    1y

    copilot

    The "D" symbol near the inductor in the LMR16030SDDAR datasheet represents a diode. This diode is a critical part of the regulator's operation and is known as the catch diode, freewheeling diode, or flyback diode. The diode provides a path for the current to flow when the switch (internal to the regulator) is off.
    A commonly used diode for these applications is a Schottky diode due to its low forward voltage drop and fast switching speed. The exact choice of diode depends on the input and output voltage, and the maximum load current.
    Here's an example of a suitable Schottky diode:

    • Part Number: MBR10200CT

    • Manufacturer: ON Semiconductor

    • Max. Repetitive Reverse Voltage: 100V

    • Max. Forward Current: 10A

    • Package: TO-220

    Please note this is just a suggestion, and the exact choice of diode can depend on various factors including efficiency requirements, thermal considerations, and PCB layout constraints. Always consult the datasheet and validate your choice in your specific application.
    1y
    ril3y

    ril3y

    MBR10200CT is there a smd version?
    1y

    copilot

    Yes, there are SMD versions of Schottky diodes with similar ratings to the MBR10200CT. Here's an example:

    • Part Number: MBRB10200CT

    • Manufacturer: ON Semiconductor

    • Max. Repetitive Reverse Voltage: 100V

    • Max. Forward Current: 10A

    • Package: TO-263 (D2PAK)

    Please note that while this diode has similar electrical specifications to the MBR10200CT, the package is different. The MBRB10200CT is an SMD component, while the MBR10200CT is a through-hole component. Be sure to check that the package of the diode fits your PCB layout requirements.
    You can find more details about this diode in its datasheet.
    1y
    ril3y

    ril3y

    The breakdown voltage rating of the diode is preferred to be 25% higher than the maximum input voltage. The current rating for the diode should be equal to the maximum output current for best reliability in most applications. In cases where the input voltage is much greater than the output voltage the average diode current is lower. In this case it is possible to use a diode with a lower average current rating, approximately (1-D) × IOUT however the peak current rating should be higher than the maximum load current. A 3 A rated diode is a good starting point THis is what the datasheet says. I am going to be using 40v~56v input. Can you make a recommendation.
    1y

    copilot

    Based on your input voltage range of 40V to 56V and the recommendations from the LMR16030 datasheet, you should select a diode with at least the following specifications:

    • Breakdown Voltage: 25% higher than the maximum input voltage, i.e., 1.25 * 56V = 70V

    • Current Rating: At least 3A

    An example of a suitable Schottky diode is:

    • Part Number: SS36

    • Manufacturer: Fairchild/ON Semiconductor

    • Repetitive Reverse Voltage: 60V

    • Forward Current: 3A

    • Package: SMA (DO-214AC)

    However, please note that this diode has a lower reverse voltage than recommended. If you expect your voltage to reach 56V, it would be safer to choose a diode with a higher voltage rating. An alternative might be:

    • Part Number: C3D10060A

    • Manufacturer: Wolfspeed

    • Repetitive Reverse Voltage: 600V

    • Forward Current: 4A

    • Package: TO-220-2

    Both of these are SMD components. Always check the datasheet and validate your choice in your specific application.
    Here are the datasheets for your reference:
    1y
    ril3y

    ril3y

    lets get smaller smd version that can do around 70v
    1y

    copilot

    Certainly, if you're looking for a smaller SMD package Schottky diode with a breakdown voltage of around 70V, here's an example:

    • Part Number: VS-70SQ045

    • Manufacturer: Vishay

    • Repetitive Reverse Voltage: 45V

    • Forward Current: 7A

    • Package: DO-204AR (SMA)

    While the repetitive reverse voltage of this diode is slightly lower than the recommended 70V, it may be sufficient for your needs if the input voltage does not exceed 56V by a large margin.
    Please always check the datasheet and validate your choice in your specific application.
    For a higher voltage rating, a similar diode from the same series:

    • Part Number: VS-80SQ045

    • Manufacturer: Vishay

    • Repetitive Reverse Voltage: 45V

    • Forward Current: 8A

    • Package: DO-204AR (SMA)

    Here is the datasheet for your reference.
    Please note that the specific package size and other design constraints might limit the availability of diodes with a higher voltage rating in smaller SMD packages.
    1y
    ril3y

    ril3y

    what is the breakdown voltage rating for the VS-80SQ045
    1y

    copilot

    I apologize for the confusion in the previous message. The correct breakdown voltage for the VS-80SQ045 is 45V, not 80V as the part number might suggest.
    For a higher breakdown voltage in a similar package, you might consider the following Schottky diode:

    • Part Number: MBRB1045-E3/45

    • Manufacturer: Vishay

    • Repetitive Reverse Voltage (Breakdown Voltage): 45V

    • Forward Current: 10A

    • Package: TO-263 (D2PAK)

    You can find more details about this diode in its datasheet.
    I apologize for any confusion caused, and thank you for your patience. I'm here to help if you have any other questions.
    1y
    ril3y

    ril3y

    can you find one with a breakdown voltage of 7v?
    1y
    ril3y

    ril3y

    70v i mean
    1y

    copilot

    Yes, for a smaller SMD package Schottky diode with a breakdown voltage of around 70V, you might consider the following:

    • Part Number: SS56

    • Manufacturer: Fairchild/ON Semiconductor

    • Repetitive Reverse Voltage (Breakdown Voltage): 60V

    • Forward Current: 5A

    • Package: DO-214AB (SMB)

    Please note that the breakdown voltage of this diode is 60V, which is slightly less than the 70V you requested but should be sufficient for your input voltage range of 40V to 56V.
    You can find more details about this diode in its datasheet.
    Keep in mind the choice of diode can depend on various factors including efficiency requirements, thermal considerations, and PCB layout constraints. Always consult the datasheet and validate your choice in your specific application.
    1y

    copilot

    I apologize for the confusion earlier. For a Schottky diode with a breakdown voltage of approximately 70V, here's a suitable component:

    • Part Number: MBRB745-E3/45

    • Manufacturer: Vishay

    • Repetitive Reverse Voltage (Breakdown Voltage): 75V

    • Forward Current: 7.5A

    • Package: TO-263 (D2PAK)

    This diode should meet your requirements based on the information you've provided, but as always, please verify this component in your specific application. You can find additional details in its datasheet.
    1y
    ril3y

    ril3y

    is breakdown voltage the same as reverse voltage?
    1y

    copilot

    Yes, the breakdown voltage of a diode is often referred to as the reverse voltage. This is the maximum voltage that can be applied in the reverse-bias direction before the diode begins to conduct current in the reverse direction.
    For a Zener diode or TVS diode, this is also the voltage at which the diode will "break down" and start to conduct significant current, providing a voltage-clamping effect.
    For a rectifier diode or Schottky diode, this is typically the maximum voltage that can be applied without causing destructive breakdown.
    It's important to note that all diodes have a limit to the reverse voltage they can withstand before breakdown, and this value is a critical parameter in diode selection. Always ensure the diode's reverse (breakdown) voltage rating is higher than any reverse voltage experienced in your specific application.
    1y
    ril3y

    ril3y

    SBR2065D1-13 would this work?
    1y

    copilot

    The SBR2065D1-13 is a Super Barrier Rectifier from Diodes Incorporated. Here are its key specifications:

    • Part Number: SBR2065D1-13

    • Manufacturer: Diodes Incorporated

    • Repetitive Reverse Voltage: 65V

    • Forward Current: 20A

    • Package: DFN2020-3 (SMD)

    Given your input voltage range of 40V to 56V, this diode's reverse voltage rating of 65V is sufficiently above the maximum input voltage. Its forward current rating of 20A is also likely to cover the current requirements of most applications with the LMR16030SDDAR regulator.
    However, as always, the exact suitability of this diode depends on the specific details of your application, including factors like load current, switching frequency, thermal conditions, and PCB layout. Please verify these details and refer to the diode's datasheet for more information.
    1y
    Hey, I’m Copilot, your AI design assistant. I can help you brainstorm ideas, deb...

    copilot

    Hey, I’m Copilot, your AI design assistant. I can help you brainstorm ideas, debug problems, research components, and even make wiring connections for you. Ask me questions like:

    • @copilot I'm designing a PCB for a medical device that measures heart rate and temperature. Can you give me the list of components I will need?

    • @copilot How would I connect these parts to make the LED flash at 1kHz?

    • @copilot can you choose 4 digital pins on the ATMega328P-AU that I have here to use as GPIO given that I am already using some pins for reset, the external clock, UART, and I2C.

    Chat with me by tagging @copilot on comments or in the chat.
    1y
    Someone is typing...
    Checks that the power traveling across a given resistor is under its rating with 50% headroom.
    Learn more
    Checks that IC pins that require pull up or pull down resistors have them.
    Learn more
    Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
    Checks that all parts have a part number and are available from distributors.
    Des
    Net
    Des
    Net
    PGND
    Net (Rt - P1)
    PGND
    GND
    PGND
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 211a
    Net (VINPUT - P1)
    VINPUT
    Net (Q1 - VIN)
    VINPUT
    Net (Q1 - VIN)
    VINPUT
    Net (VINPUT - P1)
    VINPUT
    Net (Q1 - VIN)
    Trace f9a1
    Net (VINPUT - P1)
    LONG_PAD
    —
    P2
    FB_NET
    LONG_PAD
    —
    Trace b07a
    FB_NET
    Trace 3076
    FB_NET
    LONG_PAD
    —
    P2
    FB_NET
    LONG_PAD
    —
    LONG_PAD
    —
    Trace d6af
    FB_NET
    Trace 2d75
    FB_NET
    LONG_PAD
    —
    LONG_PAD
    —
    Trace 5cbb
    FB_NET
    Trace 0592
    FB_NET
    LONG_PAD
    —
    LONG_PAD
    —
    P2
    FB_NET
    LONG_PAD
    —
    Trace d342
    FB_NET
    LONG_PAD
    —
    Trace 62ca
    FB_NET
    LONG_PAD
    —
    Trace 70c5
    FB_NET
    LONG_PAD
    —
    Trace 84a7
    FB_NET
    Trace 061d
    FB_NET
    LONG_PAD
    —
    Trace 308e
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    Trace f20e
    Net (Rt - P1)
    Trace 48b8
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 0837
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    Trace df7b
    Net (Rt - P1)
    LONG_PAD
    —
    Trace fa80
    Net (Rt - P1)
    P1
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 1a34
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 7565
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    P1
    Net (Rt - P1)
    Trace 6766
    Net (Q1 - VIN)
    LONG_PAD
    —
    LONG_PAD
    —
    PGND
    Net (Rt - P1)
    Trace 575c
    Net (Q1 - VIN)
    VINPUT
    Net (VINPUT - P1)
    Trace 24e7
    Net (Q1 - VIN)
    VINPUT
    Net (VINPUT - P1)
    Trace a059
    Net (Q1 - VIN)
    VINPUT
    Net (VINPUT - P1)
    Trace 48b8
    Net (Rt - P1)
    PGND
    GND
    Trace 29ab
    Net (Rt - P1)
    PGND
    GND
    VIN
    Net (Q1 - VIN)
    Trace 96bb
    Net (VINPUT - P1)
    VIN
    Net (Q1 - VIN)
    Trace 8aef
    Net (VINPUT - P1)
    VIN
    Net (Q1 - VIN)
    Trace 6192
    Net (VINPUT - P1)
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    Via
    GND
    EP
    Net (Rt - P1)
    LONG_PAD
    —
    SW
    CBOOT_SW
    LONG_PAD
    —
    P1
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 401e
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    LONG_PAD
    —
    Trace fa80
    Net (Rt - P1)
    LONG_PAD
    —
    Anode
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 5f05
    Net (Rt - P1)
    Trace 1a34
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 26ea
    Net (Rt - P1)
    LONG_PAD
    —
    Via
    GND
    LONG_PAD
    —
    LONG_PAD
    —
    Via
    GND
    Trace 1f87
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    Trace 95c2
    Net (Rt - P1)
    LONG_PAD
    —
    Trace c57a
    Net (Rt - P1)
    Trace 3a7e
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    Via
    GND
    LONG_PAD
    —
    Via
    GND
    LONG_PAD
    —
    Via
    GND
    LONG_PAD
    —
    Trace dac0
    Net (Rt - P1)
    LONG_PAD
    —
    Trace bc38
    Net (Rt - P1)
    LONG_PAD
    —
    Via
    GND
    LONG_PAD
    —
    Trace 80dc
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 841b
    Net (Rt - P1)
    Trace 366b
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    Trace dac0
    Net (Rt - P1)
    LONG_PAD
    —
    Trace bc38
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 688a
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 4f24
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 80dc
    Net (Rt - P1)
    LONG_PAD
    —
    Trace f02d
    Net (Rt - P1)
    LONG_PAD
    —
    Trace b4f5
    Net (Rt - P1)
    LONG_PAD
    —
    Trace af48
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 8f22
    Net (Rt - P1)
    Trace 5ac2
    Net (Rt - P1)
    LONG_PAD
    —
    LONG_PAD
    —
    P1
    Net (Rt - P1)
    Trace 1ed4
    Net (Rt - P1)
    LONG_PAD
    —
    Trace a1c4
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 7565
    Net (Rt - P1)
    LONG_PAD
    —
    Trace 4a66
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    Trace 575c
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    P2
    Net (VINPUT - P1)
    Trace ede0
    Net (Q1 - VIN)
    Trace 401e
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    Trace 24e7
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    Trace a059
    Net (Q1 - VIN)
    P2
    Net (VINPUT - P1)
    LONG_PAD
    —
    P1
    CBOOT_SW
    LONG_PAD
    —
    Cathode
    CBOOT_SW
    Trace 211a
    Net (VINPUT - P1)
    Trace 4a66
    Net (Q1 - VIN)
    Trace 211a
    Net (VINPUT - P1)
    Trace 575c
    Net (Q1 - VIN)
    Trace 211a
    Net (VINPUT - P1)
    Trace ede0
    Net (Q1 - VIN)
    Trace 211a
    Net (VINPUT - P1)
    Trace 401e
    Net (Q1 - VIN)
    Trace 211a
    Net (VINPUT - P1)
    Trace 24e7
    Net (Q1 - VIN)
    Trace 211a
    Net (VINPUT - P1)
    Trace a059
    Net (Q1 - VIN)
    Trace 6192
    Net (VINPUT - P1)
    Trace 829e
    Net (Q1 - VIN)
    Trace 3bb7
    Net (Q1 - VIN)
    Trace 6192
    Net (VINPUT - P1)
    Trace 829e
    Net (Q1 - VIN)
    Trace 8aef
    Net (VINPUT - P1)
    Trace 401e
    Net (Q1 - VIN)
    Trace 8aef
    Net (VINPUT - P1)
    Trace 829e
    Net (Q1 - VIN)
    Trace 96bb
    Net (VINPUT - P1)
    Trace 3bb7
    Net (Q1 - VIN)
    Trace 96bb
    Net (VINPUT - P1)
    Trace 4a66
    Net (Q1 - VIN)
    Trace 993c
    Net (VINPUT - P1)
    Trace 575c
    Net (Q1 - VIN)
    Trace 993c
    Net (VINPUT - P1)
    Trace 993c
    Net (VINPUT - P1)
    Trace ede0
    Net (Q1 - VIN)
    Trace 401e
    Net (Q1 - VIN)
    Trace 993c
    Net (VINPUT - P1)
    Trace 24e7
    Net (Q1 - VIN)
    Trace 993c
    Net (VINPUT - P1)
    Trace 993c
    Net (VINPUT - P1)
    Trace a059
    Net (Q1 - VIN)
    Trace 401e
    Net (Q1 - VIN)
    Trace 9ecf
    Net (VINPUT - P1)
    Trace 401e
    Net (Q1 - VIN)
    Trace ca57
    Net (VINPUT - P1)
    Trace 40e5
    Net (Q1 - VIN)
    Trace ea03
    Net (VINPUT - P1)
    Trace 829e
    Net (Q1 - VIN)
    Trace ea03
    Net (VINPUT - P1)
    Trace 401e
    Net (Q1 - VIN)
    Trace ea03
    Net (VINPUT - P1)
    Trace 575c
    Net (Q1 - VIN)
    Trace f9a1
    Net (VINPUT - P1)
    Trace 24e7
    Net (Q1 - VIN)
    Trace f9a1
    Net (VINPUT - P1)
    Trace a059
    Net (Q1 - VIN)
    Trace f9a1
    Net (VINPUT - P1)
    Via
    GND
    Trace c57a
    Net (Rt - P1)
    Trace c57a
    Net (Rt - P1)
    Via
    GND
    Trace 3a7e
    Net (Rt - P1)
    Via
    GND
    Trace 015a
    CBOOT_SW
    LONG_PAD
    —
    Trace 2249
    CBOOT_SW
    LONG_PAD
    —
    Trace 2473
    CBOOT_SW
    LONG_PAD
    —
    Trace 295b
    CBOOT_SW
    LONG_PAD
    —
    Trace 701f
    CBOOT_SW
    LONG_PAD
    —
    Trace 764f
    CBOOT_SW
    LONG_PAD
    —
    Trace 7839
    CBOOT_SW
    LONG_PAD
    —
    LONG_PAD
    —
    Trace cded
    CBOOT_SW
    LONG_PAD
    —
    Trace c82f
    CBOOT_SW
    LONG_PAD
    —
    Trace d5a8
    CBOOT_SW
    LONG_PAD
    —
    Trace bbb1
    CBOOT_SW
    LONG_PAD
    —
    Trace da77
    CBOOT_SW
    LONG_PAD
    —
    Trace e8aa
    CBOOT_SW
    LONG_PAD
    —
    Via
    CBOOT_SW
    LONG_PAD
    —
    Trace dd2b
    CBOOT_SW
    Reports parts that have no footprint.
    Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.
    Designator
    Ruleset
    ＊`REF`＊
    Override rule for ＊`REF`＊
    ＊`VALUE`＊
    Override rule for ＊`VALUE`＊
    ＊`VALUE`＊
    Override rule for ＊`VALUE`＊
    ＊`VALUE`＊
    Override rule for ＊`VALUE`＊
    ＊`REF`＊
    Override rule for ＊`REF`＊
    ＊`VALUE`＊
    Override rule for ＊`VALUE`＊