

PowerSupply
Adjustable power supply
- Size
- 93 × 116 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 115
- Nets
- 81
- Pads
- 339
- Tracks, vias
- 788, 108
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Mar 2019
- Updated
- 15 Sep 2025
Overview
PowerSupply is an open-source printed circuit board by JeppeSRC, from the JeppeSRC/PowerSupply repository on GitHub, published under the MIT licence. It is a 2-layer board of 93 × 116 mm with 115 parts on 81 nets, routed with 788 tracks and 108 vias.
It is built around the OPA4196ID, FQP17P10-VB and LD1086D2T33, with the MMBT3904 among its other parts. Its parts include 50 resistors, 33 capacitors, 8 ICs, 4 transistors and 4 connectors. It belongs with the power boards and the STM32 boards of this library.
Main components
4OPA4196ID
SOIC-14-18V~-2.25V、2.25V~18V -40℃~+125℃ 100uV 140dB 140uA 15nV/√Hz@1kHz 2.5MHz 2pA 4 4.5V~36V 500nV/℃ 5pA 65mA 7.5V/us EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOIC-14 Operational Amplifier ROHSTexas InstrumentsOperational AmplifierFQP17P10-VB
TO-220AB-55℃~+150℃ 1 P-Channel 1.055nF 100V 100mΩ@10V、120mΩ@4.5V 2.5V 23.2nC@10V 23A 41pF 52.1W 65pF P-Channel TO-220AB MOSFETs ROHSVBsemi ElecMOSFETsLD1086D2T33
TO-263-2-40℃~+125℃@(Tj) 1 1.3V@(1.5A) 1.5A 3.3V 30V 5mA 79dB@(120Hz) Fixed Over Temperature Protection Positive TO-263-2 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mdPowerSupply
Software, schematic and layout for kind of a PSU
Parts
115| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11, R12, R16, R17, R18, R19, R20, R25, R26, R34, R40, R41, R43, R44, R45, R47 +2 |
| 13 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R15, R27, R28, R29, R30, R31, R32, R33, R35, R36, R42, R46, R48 |
| 12 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C8, C13, C16, C19, C26, C28, C29, C30, C31, C32, C33 |
| 10 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C5, C12, C14, C17, C20, C23, C24, C25 |
| 10 | 1R | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 4 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R24, R37, R38, R39 |
| 4 | 1µF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C9, C15, C18, C21 |
| 4 | FQP17P10 | Package_TO_SOT_THT:TO-220-3_Vertical | U5, U6, U7, U8 |
| 4 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 4 | RA-T2X-xxE | footprints:RA-T2X-xxE | HS1, HS2, HS3, HS4 |
| 3 | 10µF HV | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C10, C11 |
| 2 | 1-12pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C7, C27 |
| 2 | 82k5 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R13, R14 |
| 2 | ? | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R22, R23 |
| 2 | OPA4196 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U2 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4 |
| 1 | 4.7µF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C22 |
| 1 | 9k88 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R21 |
| 1 | APTD3216LVBCD | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2 |
| 1 | APTD3216LZGCK | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 1 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | Display | Connector_PinHeader_2.54mm:PinHeader_1x11_P2.54mm_Vertical | J2 |
| 1 | ENC0 (Voltage) | footprints:PEC12R-2xxxf-Sxxxx | SW1 |
| 1 | ENC1 (Current) | footprints:PEC12R-2xxxf-Sxxxx | SW2 |
| 1 | Iread | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | Iset | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | LD1086D2T33 | Package_TO_SOT_SMD:TO-263-3_TabPin2 | U3 |
| 1 | Net-Tie_2 | NetTie:NetTie-2_SMD_Pad2.0mm | NT1 |
| 1 | RST | footprints:LL3301NF065QG | SW4 |
| 1 | STM32F373C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U10 |
| 1 | Terminal | footprints:20020316-GXXXXXXLF | J4 |
| 1 | USART | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | USB_A | footprints:USBA | J1 |
| 1 | Vread | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | Vreg | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | Vset | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
Questions
How big is the PowerSupply PCB?
It measures 93 × 116 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PowerSupply use?
115 parts, built around the OPA4196ID, FQP17P10-VB, LD1086D2T33 and MMBT3904. 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 PowerSupply KiCad files?
From the JeppeSRC/PowerSupply repository on GitHub, at the commit this page was made from: the board is kicad/PowerSupply.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PowerSupply 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).
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