4 layers75 × 56 mm Power, the printed circuit board in 3D

Power

RaspberryPi HAT for ardupilot / PX4

Size: 75 × 56 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 75
Nets: 85
Pads: 299
Tracks, vias: 381, 162
Pours: 8
Routed: Yes
KiCad: KiCad 10.0 (file 20260206)
Created: 8 Jul 2026
Updated: 8 Oct 2026

Overview

Power is an open-source printed circuit board by heeplr, from the heeplr/pilotpi repository on GitHub, published under the MIT licence. It is a 4-layer board of 75 × 56 mm with 75 parts on 85 nets, routed with 381 tracks and 162 vias.

It is built around the LP5562TMX, TPS56A37RPAR and REF5050IDGK, with the 1N4148W and BC847C among its other parts. Its parts include 20 connectors, 17 resistors, 16 capacitors, 4 ICs and 4 diodes.

Main components

README

power/README.md

Power Board

Schematic

power XL4015 V-Ref V-Div Indicator LED I2C expander DCDC Buzzer

PCB Layout

front-pcb in1-pcb in2-pcb back-pcb

front-asy back-asy

Parts

Qty	Value	Footprint	References
4	3.3KΩ ±1%	Resistor_SMD:R_0402_1005Metric	R33, R34, R35, R36
4	5V_OR_3V3	Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels	JP_I2C_PWR_3, JP_I2C_PWR_4, JP_I2C_PWR_5, JP_I2C_PWR_6
4	MountingHole_2.7mm_M2.5	MountingHole:MountingHole_2.7mm_M2.5	MH1, MH2, MH3, MH4
3	1uF (105) 10% 50V	Capacitor_SMD:C_0603_1608Metric	C7, C10, C22
3	JP_VCC_PWM	Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical	J9, J18, J20
2	100nF (104) 10% 16V	Capacitor_SMD:C_0402_1005Metric	C9, C21
2	10uF 10% 35V	Capacitor_SMD:C_0805_2012Metric	C15, C18
2	1KΩ (1001) ±1%	Resistor_SMD:R_0402_1005Metric	R6, R7
2	22uF 10% 25V	Capacitor_SMD:C_1206_3216Metric	C16, C20
2	PWM_OUT	pilotpi:PinHeader_3x8_P2.54mm_Horizontal	J2, J8
1	100nF (105) 10% 35V	Capacitor_SMD:C_0603_1608Metric	C19
1	100nF / 16V	Resistor_SMD:R_0402_1005Metric	C17
1	100nF(104) 10% 50V	Capacitor_SMD:C_0402_1005Metric	C12
1	10KΩ (1001) ±1%	Resistor_SMD:R_0402_1005Metric	R15
1	10KΩ (1002) ±1%	Resistor_SMD:R_0805_2012Metric	R4
1	150pF / 25V	Capacitor_SMD:C_0603_1608Metric	C13
1	17.8kΩ / 1%	Resistor_SMD:R_0603_1608Metric	R13
1	1N4148W	Diode_SMD:D_SOD-123	D3
1	200Ω (1001) ±1%	Resistor_SMD:R_0603_1608Metric	R5
1	20KΩ (2002) ±1%	Resistor_SMD:R_0805_2012Metric	R3
1	220nF 10% 50V	Capacitor_SMD:C_0805_2012Metric	C11
1	22uF (226) 20% 6.3V	Capacitor_SMD:C_0603_1608Metric	C8
1	3.09kΩ / 1%	Resistor_SMD:R_0603_1608Metric	R14
1	3.3uH 16A 6.5mΩ ±20%	pilotpi:L_6.6x7.5_H4	L2
1	390Ω / 1%	Resistor_SMD:R_0603_1608Metric	R12
1	4.7KΩ (4701) ±1%	Resistor_SMD:R_0402_1005Metric	R8
1	47nF 10% 16V	Resistor_SMD:R_0603_1608Metric	C14
1	49.9Ω ±1%	Resistor_SMD:R_0402_1005Metric	R10
1	52.3KΩ ±1%	Resistor_SMD:R_0402_1005Metric	R11
1	75KΩ (1001) ±1%	Resistor_SMD:R_0603_1608Metric	R9
1	BC847C	Package_TO_SOT_SMD:SOT-23	Q2
1	Buzzer	Buzzer_Beeper:MagneticBuzzer_PUI_AT-0927-TT-6-R	BZ1
1	Conn_01x01	Connector_Wire:SolderWirePad_1x01_SMD_1.5x3mm	J19
1	D15P05	Package_TO_SOT_SMD:TO-252-2	Q1
1	GND-AGND	NetTie:NetTie-2_THT_Pad0.3mm	NT4
1	GND1	TestPoint:TestPoint_Pad_D1.5mm	J15
1	GND2	TestPoint:TestPoint_Pad_D1.5mm	J17
1	GPIO	Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical	J1
1	I2C_EXT1	Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal	J6
1	I2C_EXT2	Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal	J7
1	JP_BUZZ_PWM	Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm	JP1
1	JP_EXT	Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical	J4
1	JP_VOLTS	Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical	J5
1	L78L06_SOT89	Package_TO_SOT_SMD:SOT-89-3	U3
1	LED_RGB	LED_SMD:LED_RGB_5050-6	D4
1	LP5562	pilotpi:Texas_DSBGA-12_1.648x1.248mm_Layout3x4_P0.4mm	U1
1	PWM_IN	Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical	J3
1	REF5050IDGK	Package_SO:VSSOP-8_3x3mm_P0.65mm	U2
1	SCL1	TestPoint:TestPoint_Pad_D1.5mm	J10
1	SCL2	TestPoint:TestPoint_Pad_D1.5mm	J12
1	SDA1	TestPoint:TestPoint_Pad_D1.5mm	J11
1	SDA2	TestPoint:TestPoint_Pad_D1.5mm	J13
1	TPS56A37RPAR	pilotpi:RPA0010A-MFG	U5
1	VCC1	TestPoint:TestPoint_Pad_D1.5mm	J14
1	VCC2	TestPoint:TestPoint_Pad_D1.5mm	J16
1	red	LED_SMD:LED_0603_1608Metric	D2
1	white	LED_SMD:LED_0603_1608Metric	D1

Questions

How big is the Power PCB?

It measures 75 × 56 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Power use?

75 parts, built around the LP5562TMX, TPS56A37RPAR, REF5050IDGK and 1N4148W. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Power KiCad files?

From the heeplr/pilotpi repository on GitHub, at the commit this page was made from: the board is power/power.kicad_pcb and its schematic power/_buzzer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Power design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/heeplr-pilotpi-power" title="Power in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/heeplr-pilotpi-power.jpg" alt="Power" width="1200" height="900">

A picture that opens the board, for a README

[![Power](https://pcbkit.io/embed/boards/heeplr-pilotpi-power.jpg?size=s)](https://pcbkit.io/boards/heeplr-pilotpi-power)

Source

Repository: heeplr/pilotpi
Board file: power/power.kicad_pcb
Commit: dd48a43
Licence: MIT

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