Schematic for Buck boost converter 3.3V 500mA: there is a buck...

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To design a buck-boost converter with the TPS63051YFFR for a 3.3V output at 500mA, powered by a Li-ion battery, follow these steps:

Step 1: Gather Components

IC: TPS63051YFFR
Inductor: Choose an inductor with appropriate current ratings, e.g., 2.2μH
Capacitors: Output and input capacitors with appropriate voltage ratings, e.g., 10μF
Resistors: For feedback, if needed for setting the output voltage
Diode: Schottky diode, if necessary according to the reference design
Miscellaneous: Headers, connectors, battery holder, etc.

Step 2: Connections

Referencing the datasheet for the TPS63051YFFR, let's define the connections:

Power Connections:
- Connect your Li-ion battery positive terminal to the input capacitor $C1:1$ and then to the VIN pin of TPS63051YFFR.
- Connect the ground of your Li-ion battery to the GND pin of TPS63051YFFR and to the other pin of the input capacitor $C1:2$ .
Inductor and Capacitors:
- Connect the inductor $L1:1$ between the VOUT pin and the SW pin of TPS63051YFFR.
- Connect the output capacitor $C2:1$ between the VOUT pin and ground $C2:2$ .
Feedback Resistors:
- If the output voltage needs to be set (usually these are internal for this IC), otherwise, connect these as per the design example in the datasheet.
- Connect a resistor $R1$ between the VOUT pin and FB pin of the TPS63051YFFR.

Detailed Connections

Power Input from Battery:
- Connect Battery:Positive to $C1:1$
- Connect $C1:2$ to TPS63051YFFR:VIN
- Connect Battery:Negative to TPS63051YFFR:GND and C1:GND
Inductor Connection:
- Connect TPS63051YFFR:SW to $L1:1$
- Connect $L1:2$ to TPS63051YFFR:VOUT
Output Capacitor:
- Connect $C2:1$ to TPS63051YFFR:VOUT
- Connect $C2:2$ to TPS63051YFFR:GND
Feedback Resistor (if needed):
- Connect $R1:1$ to TPS63051YFFR:VOUT
- Connect $R1:2$ to TPS63051YFFR:FB
Ground Connections:
- Ensure all grounds (battery, input capacitor, output capacitor) are connected together.

Step 3: PCB Layout

On the PCB side:

Place components close to the IC to reduce parasitic inductance.
Use wide traces for power and ground lines to handle the current.
Route the feedback trace away from noisy signals to maintain stability.

Step 4: Verify and Validate

Simulate the circuit if possible.
Prototype and measure the output voltage and current to ensure it meets specifications.

Schematic Summary

Power Input:
- Connect Battery:Positive to $C1:1$
- Connect $C1:2$ to TPS63051YFFR:VIN
- Connect Battery:Negative to TPS63051YFFR:GND and C1:GND
Inductor and Output Capacitor:
- Connect TPS63051YFFR:SW to $L1:1$
- Connect $L1:2$ to TPS63051YFFR:VOUT
- Connect $C2:1$ to TPS63051YFFR:VOUT
- Connect $C2:2$ to TPS63051YFFR:GND
Feedback Resistor:
- Connect $R1:1$ to TPS63051YFFR:VOUT
- Connect $R1:2$ to TPS63051YFFR:FB

Final Notes

Consult the TPS63051YFFR datasheet for specific recommendations and values.
Be sure to consider the thermal design and ensure proper heat dissipation in your layout.

Would you like to proceed with creating this schematic using Flux? If so, let me know any specifics or changes you need!

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https://i.ibb.co/9g4tGRS/Screenshot-2023-10-04-at-3-35-43-PM.png https://cdn2.f...

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3V3

Capacitance

10u F

Resistance

10k Ω

Capacitance

1n F

3V3

Capacitance

10u F

Capacitance

10u F

Inductance

1.5u H

VIN

Manufacturer Part Number

TPS63051YFFR

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 19

Des	Net	Des	Net
C1:P2	GND	Trace b31a	Net 1
C1:P2	GND	Trace bfc1	Net 1
C1:P2	GND	Trace eb0e	Net 1
C1:P2	GND	Trace fc20	Net 1
Trace 2c75	GND	Via	None
Trace 72b9	GND	Via	None
C1:P1	Net 1	Trace e54d	Net 7
Trace 91d6	Net 1	C1:P2	GND
Trace 227b	Net 1	C1:P2	GND
Trace bfc1	Net 1	Trace e54d	Net 7
Trace 3b2a	Net 4	Via	None
Trace 1cdc	Net 6	L3:P2	Net 3
Trace 59f3	Net 6	U1:L2	Net 3
Trace 124d	Net 6	Via	None
Trace b7d5	Net 7	Via	None
Trace bcd8	Net 7	Via	None
Via	None	Trace 78d3	GND
Via	None	Trace 375c	GND
Via	None	Trace 6739	GND

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 4

	Designator	Ruleset
	C3:P2	Override rule for P2
	Footprint	Override rule for Footprint
	J1:PIN_2	Override rule for PIN_2
	IC＊＊	Override rule for IC＊＊

Airwires • 14

	Designators	Net
	Trace 1cad:Trace 1cad, Trace d716:Trace d716	GND
	U1:GND, Fill:Fill	GND
	U1:ILIM0, U1:PFM/PWM	GND
	U1:ILIM1, U1:ILIM0	GND
	Via-Island-0:Via-Island-0, J1:PIN_4	GND
	J1:PIN_2, Trace d29d:Trace d29d	Net 1
	R1:P1, Trace eb0e:Trace eb0e	Net 1
	L3:P2, U1:L2	Net 3
	Trace 4c3f:Trace 4c3f, J1:PIN_1	Net 4
	J1:PIN_3, Trace 09d1:Trace 09d1	Net 6
	Trace c269:Trace c269, U1:FB	Net 6
	U1:VOUT, U1:FB	Net 6
	U1:PG, Trace e54d:Trace e54d	Net 7
	Fill:Fill, C1:P2	None

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper • 2

	Name
	Via
	Trace 1cdc, Trace bdee, Trace 59f3

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Manufacturing

Manufacturer Part Number • 7

	Designator	MPN
	C1	None
	C2	None
	C3	None
	C4	None
	J1	None
	L3	None
	R1	None

Parts Available

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System Checks

Auto-Layout

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Passive Components

Resistor Power Rating

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Pull Up/Pull Down Presence

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Checks that IC pins that require pull up or pull down resistors have them.

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Capacitor Voltage Rating

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Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
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
jharwinbarrozo
43.0M
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
jharwinbarrozo
11.4M
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
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 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
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
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

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Buck boost converter 3.3V 500mA

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Properties

Availability & Pricing

Distributor		Qty 1
	Digi-Key	$0.93
	LCSC	$0.40
	Mouser	$2.04

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