2 layers62.5 × 69.6 mm
2 layers108.5 × 69.9 mm
Usbpd adapter
fachat/pcb_bitsVarious libs for symbols, footprints, partial schematics
- Size
- 108.5 × 69.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 132
- Nets
- 72
- Pads
- 347
- Tracks, vias
- 1,194, 175
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 Sep 2026
- Updated
- 16 Oct 2026
Overview
Usbpd adapter is an open-source printed circuit board by fachat, from the fachat/pcb_bits repository on GitHub. It is a 2-layer board of 108.5 × 69.9 mm with 132 parts on 72 nets, routed with 1,194 tracks and 175 vias.
It is built around the AP63205WU, CH224K and MT3608, with the TPS5430DDA, L7812 and L7905 among its other parts. Its parts include 54 resistors, 26 capacitors, 18 diodes, 13 ICs and 7 transistors. It belongs with the power and interfaces and adapters boards of this library.
Main components
11
AP63205WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.8V~32V 5V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
CH224K
ESSOP-10-150mil-1mm-40℃~+90℃ 100W 4V~30V 5V、9V、12V、15V、20V Overvoltage Protection、Thermal Protection PD 3.0 Power Receiver Controller ESSOP-10-150mil-1mm USB PD ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersMT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
TPS5430DDA
ESOP-8-40℃~+125℃@(TJ) 1 1.221V~32.04V 3A 4.4mA 5.5V~36V 500kHz Adjustable Buck Buck Built-in No ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
L7812
TO-220ST0℃~+125℃@(Tj) 1 1.2A 12V 2V@(1A) 30V 71dB@(120Hz) 76uV Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL7905
TO-220TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSKTPUncategorised
BC857
SOT-231 PNP 100MHz 100mA 15nA 200mW 45V 5V 650mV 800 PNP SOT-23 Bipolar (BJT) ROHSSTMicroelectronicsBipolar (BJT)BC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
B340A
SMA(DO-214AC)-55℃~+150℃ 1 Independent 3A 40V 500mV@3A 500uA@40V 80A SMA(DO-214AC) Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
LDI1117-3.3H
SOT-223Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsDIOTEC
README
README.mdPCB libraries and bits
This repository contains various symbol and footprint bits, as well as partial schematics to be re-used in other designs.
Parts
132| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | LED | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3, D5, D6, D7, D8, D9, D10, D13, D14, D16, D17, D18 |
| 12 | 2k2 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R13, R33, R34, R45, R46, R47, R48, R50, R51, R55, R56 |
| 11 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R14, R18, R22, R30, R36, R39, R41, R43, R49, R54 |
| 9 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C7, C10, C15, C18, C43, C46, C49, C50 |
| 8 | 22u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C4, C6, C16, C19, C45, C47, C48 |
| 7 | TL431DBZ | Package_TO_SOT_SMD:SOT-23 | U6, U7, U8, U10, U11, U12, U13 |
| 6 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C5, C8, C11, C12, C17 |
| 6 | 680 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16, R20, R24, R31, R52, R57 |
| 5 | BC857 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | 0 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R26, R27, R28 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965 | H1, H2, H3, H4 |
| 3 | Screw_Terminal_01x03 | TermBlock:TermBlock HB9500-3P | J5, J6, J7 |
| 2 | 1N4148 | Diode_SMD:D_SOD-323_HandSoldering | D11, D12 |
| 2 | 2.2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R37, R42 |
| 2 | 36k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R35 |
| 2 | 4.7uH | Inductor_SMD:L_APV_ANR4030 | L1, L3 |
| 2 | 420 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R12 |
| 2 | 560 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R38, R44 |
| 2 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q7, Q8 |
| 1 | 0.01uF low ESR | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 1 | 1.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8 |
| 1 | 15uH | Inductor_SMD:L_APV_APH0630 | L2 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323 | D15 |
| 1 | 1k, >=0.3W | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R29 |
| 1 | 1u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9 |
| 1 | 220u | Capacitor_SMD:CP_Elec_10x10 | C14 |
| 1 | 24k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R32 |
| 1 | 2k3 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23 |
| 1 | 3k3 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17 |
| 1 | 4k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R53 |
| 1 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 68 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15 |
| 1 | 8.2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21 |
| 1 | 8.6k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R40 |
| 1 | AP63205WU | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | B340A | Diode_SMD:D_SMA_Handsoldering | D4 |
| 1 | CH224K | Package_SO:SSOP-10-1EP_3.9x4.9mm_P1mm_EP2.1x3.3mm | U9 |
| 1 | Conn_01x04 | Connector_TE-Connectivity:TE_MATE-N-LOK_350211-1_1x04_P5.08mm_Vertical | J1 |
| 1 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | L7812 | Package_TO_SOT_SMD:TO-252-2 | U2 |
| 1 | L7905 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U5 |
| 1 | LDI1117 | Package_TO_SOT_SMD:SOT-223 | UX3 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | TPS5430DDA | Package_SO:TI_SO-PowerPAD-8_ThermalVias | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
Questions
How big is the Usbpd adapter PCB?
It measures 108.5 × 69.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usbpd adapter use?
132 parts, built around the AP63205WU, CH224K, MT3608 and TPS5430DDA. 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 Usbpd adapter KiCad files?
From the fachat/pcb_bits repository on GitHub, at the commit this page was made from: the board is pwrtest/usbpd-adapter.kicad_pcb and its schematic DPtest/DPtest.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usbpd adapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask fachat before reusing the design.
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