2 layers88.6 × 30 mm
2 layers50.8 × 27.8 mm
Breadboard power supply
ifish86/breadboard_power_supply- Size
- 50.8 × 27.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 25
- Pads
- 100
- Tracks, vias
- 198, 30
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Oct 2025
- Updated
- 30 Nov 2025
Overview
Breadboard power supply is an open-source printed circuit board by ifish86, from the ifish86/breadboard_power_supply repository on GitHub. It is a 2-layer board of 50.8 × 27.8 mm with 28 parts on 25 nets, routed with 198 tracks and 30 vias.
It is built around the AP63205WU, CH224K and AP2205-33Y. Its parts include 8 capacitors, 6 resistors, 5 connectors, 3 ICs and 1 inductor. It belongs with the power boards of this library.
Main components
3
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 Converters
AP2205-33Y
SOT-89-40℃~+125℃@(Tj) 1 200mA 24V 3.3V 30uVrms 460mV@(100mA) 500uA 60dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Thermal Shutdown Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | 0Capacitors:C_0603_1608Metric | C1, C3, C5, C8, C9 |
| 3 | 10u | 0Capacitors:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C6, C7 |
| 3 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3 |
| 2 | 100 | 0Resistors:R_0603_1608Metric_100 | R1, R2 |
| 2 | 10k | 0Resistors:R_0603_1608Metric_10k | R3, R4 |
| 2 | 1k | 0Resistors:R_0603_1608Metric_1k | R5, R6 |
| 2 | Conn_02x02_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J1, J2 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3, J4 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad_TopBottom | H1, H2 |
| 1 | 4.7uH/800mA | 0Passives:L_0805_2012Metric | L1 |
| 1 | 7010ASV | 0Connectors:GT-USB-7010ASV | J5 |
| 1 | AP2205-33Y | 0IC_Interfaces:SOT-89-3 | U3 |
| 1 | AP63205 | 0IC_Interfaces:SOT-23-6 | U2 |
| 1 | CH224K | 0IC_Interfaces:CH224K | U1 |
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Questions
How big is the Breadboard power supply PCB?
It measures 50.8 × 27.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Breadboard power supply use?
28 parts, built around the AP63205WU, CH224K and AP2205-33Y. 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 Breadboard power supply KiCad files?
From the ifish86/breadboard_power_supply repository on GitHub, at the commit this page was made from: the board is breadboard_power_supply.kicad_pcb and its schematic breadboard_power_supply.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Breadboard power supply design in my own project?
Its repository states no licence, so its author keeps all rights: ask ifish86 before reusing the design.