Chat

Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

Explain this part
Write a part description
Describe each pin
Operating conditions
Electrical max ratings
Part Specifications
Application circuits
Verify Part Details
Recommend similar parts
Check availability & lifecycle

Ready.


explain this project.

@copilot explain this project.
2y
This project appears to be in the early stages of designing an adjustable linear voltage regulator circuit using the LM317HVT-NOPB IC from Texas Instruments. The IC is capable of outputting a voltage from 1.2V to 57V and can handle up to 1.5A.
Here are the components listed in the project:
  1. LM317HVT-NOPB (U): This is the Linear Voltage Regulator IC. It has 3 pins:
    • ADJ: This is the adjustment pin which is usually connected to the ground via a resistive divider. This pin governs the output voltage.
    • VI: This is the voltage input pin, and it's here you would inject your source voltage.
    • VO: This is the voltage output pin, from which you get your regulated output voltage.
Please note that no connections have been defined yet, although the pin names and component designators have been specified.
A typical linear regulator circuit using the LM317 chip includes a couple of resistors and capacitors for setting the output voltage and smoothing out the regulator's output, respectively.
Since no connections are made yet, the next step would be to define the connections and add additional components such as resistors, capacitors, and any other required components based on your desired regulator circuitry and your overall project needs.
Remember that while designing a voltage regulator circuit, the value of resistors and capacitors will depend on the desired output voltage and current requirements as well as the characteristics of your input supply.
For a complete circuit, you will also need to consider proper thermal design, as the LM317 can carry up to 1.5 Amp and might require a heat sink for dissipation. The heat sink design will depend on the voltage differences (input-output) and the load current.
2y
Someone is typing...
5
Check that all reset/enable have an external pull-up or pull-down resistors. Rep...

@copilot Check that all reset/enable have an external pull-up or pull-down resistors. Report action items in an ordered list.
2y
I see that your project involves an LM317HVT-NOPB, which is a linear voltage regulator IC. As it turns out, this component doesn't have any reset or enable pins which would require pull-up or pull-down resistors.
However, if you add more components to your project that do have reset or enable lines, remember to include pull-up or pull-down resistors to maintain the stability of these lines. This is often done to prevent unintended state changes due to electrical noise. A common value for these resistors is around 10k Ω, but the specific value can change depending on the rest of your circuit's design.
Here's the action list as per your request:
  1. Verify if any newly added components to the project have reset or enable pins.
  2. For each reset or enable pin, determine whether a pull-up or pull-down resistor is appropriate based on the pin's active state (active HIGH indicates a pull-up resistor; active LOW indicates a pull-down resistor).
  3. Add the required pull-up or pull-down resistors to your schematic. A common starting point for their values is 10k Ω, but you should adjust this value based on your specific design requirements.
  4. Make necessary modifications in the Flux layout accordingly.
  5. Validate the above modifications by rerunning the design checks/rules in Flux.
2y
Someone is typing...
3
explain this project.

@copilot explain this project.
1y
This project involves the design of a circuit using the LM317HVT-NOPB, which is a linear voltage regulator IC from Texas Instruments. The LM317HVT-NOPB is capable of outputting an adjustable voltage ranging from 1.2V to 57V, with a maximum output current of 1.5A. It comes in a TO-220-3 package, which is common for power devices that require moderate levels of heat dissipation. This regulator is part of the #CommonPartsLibrary, indicating it is a widely used component in various power management applications.
Project Summary:
  • Component Used: Linear Voltage Regulator IC, LM317HVT-NOPB.
  • Adjustability: This voltage regulator can output an adjustable voltage in the range of 1.2V to 57V.
  • Output Current: Up to 1.5A.
  • Package: TO-220-3, suitable for applications requiring moderate heat dissipation.
  • License: The project is under the Creative Commons Attribution 4.0 International License\text{Creative Commons Attribution 4.0 International License} [https://creativecommons.org/licenses/by/4.0/].
  • Manufacturer: Texas Instruments.
  • Designator Prefix for IC: U, which is typically used for integrated circuits.
Project Components:
  1. ADJ (Adjust Pin):
    • Pins: 1
    • Terminal Type: INPUT
    • Pin Number: 1
    • Pin Type: Unspecified
    • Designator Prefix: P
  2. VI (Voltage Input Pin):
    • Pins: 1
    • Terminal Type: powerIn
    • Pin Number: 3
    • Pin Type: Unspecified
    • Designator Prefix: P
  3. VO (Voltage Output Pin):
    • Pins: 1
    • Terminal Type: powerOut
    • Pin Number: 2
    • Pin Type: Unspecified
    • Designator Prefix: P
Key Notes:
  • The project is at an initial stage, with the LM317HVT-NOPB identified as the core component for a variable voltage power supply.
  • No electrical connections have been made yet in this schematic.
  • The framing of the project suggests a focus on establishing the proper connections for power input, adjustable voltage setting, and power output, as laid out by the component pins description.
To proceed with the project, electrical connections would need to be defined, including the feedback loop for the ADJ pin to set the desired output voltage, input power connections, and output connections. Additionally, considering the regulator's adjustability feature, external components like resistors will likely be needed to set the output voltage accurately.
1y
Someone is typing...
6
ADJ
VI
VO


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. 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, 10000uF 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, 220pF, 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
  • Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink

LM317HVT-NOPB

LM317HVT-NOPB thumbnail
Linear Voltage Regulator IC Positive 1.2V to 57V Adjustable 1 Output 1.5A TO-220-3 #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LinearRegulator #VoltageRegulator

Properties

Integrated Circuit

Texas Instruments

LM317HVT-NOPB

U

Pricing & Availability

Distributor

Qty 1

Assets

LM317_TO3

LM317_TO3

defaultDefault
step

TO-220-3_Vertical.step

3D3D Model
kicad_mod

TO-220-3_Vertical.kicad_mod

FOOTPRINT_V5Footprint
TO-220.png

TO-220.png

TO-220Thumbnail

Controls