4 layers172.5 × 85 mm
2 layers52.5 × 26 mm
Netzteil
kkroesch/raspowerDC-Step-Down for powering Raspberry Pi
- Size
- 52.5 × 26 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 8
- Pads
- 49
- Tracks, vias
- 42, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 May 2025
- Updated
- 5 May 2025
Overview
Netzteil is an open-source printed circuit board by kkroesch, from the kkroesch/raspower repository on GitHub. It is a 2-layer board of 52.5 × 26 mm with 19 parts on 8 nets, routed with 42 tracks and 0 vias.
It is built around the LM2596S-ADJ, SS34 and SMAJ20A. Its parts include 4 capacitors, 4 diodes, 4 connectors, 1 resistor and 1 IC.
Main components
3
LM2596S-ADJ
TO-263-5-40℃~+125℃@(TA) 1 1.2V~37V 150kHz 3A 40V 80uA Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSUMWDC-DC Converters
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky DiodesSMAJ20A
DO-214AC(SMA)ESD And Surge Protection (TVS/ESD)hongjiacheng
README
Readme.mdRasPower
Powering Raspberry Pi (starting from Mode 3) in a device where DC power is already available. The circuit provides reverse polarity protection, overvoltage protection, and filtering of high-frequency interference into the power supply, and it prevents backfeeding from the powered device.
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | Conn_01x02_Socket | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J1, J2 |
| 2 | SS34 | Diode_SMD:D_SMA | D2, D4 |
| 1 | 100µ | Capacitor_Tantalum_SMD:CP_EIA-3528-12_Kemet-T | C1 |
| 1 | 100µH | Inductor_THT:L_Radial_D7.5mm_P5.00mm_Fastron_07P | L1 |
| 1 | 330 | Resistor_SMD:R_MiniMELF_MMA-0204 | R1 |
| 1 | 470µ | Capacitor_Tantalum_SMD:CP_EIA-3528-12_Kemet-T | C4 |
| 1 | J-jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | LED | LED_SMD:LED_Kingbright_AAA3528ESGCT | D3 |
| 1 | LM2596S-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | P-trim | Potentiometer_THT:Potentiometer_Bourns_3386P_Vertical | P1 |
| 1 | SMAJ20A | Diode_SMD:D_SMA | D1 |
The 15 most common of 19 parts.
Questions
How big is the Netzteil PCB?
It measures 52.5 × 26 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Netzteil use?
19 parts, built around the LM2596S-ADJ, SS34 and SMAJ20A. 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 Netzteil KiCad files?
From the kkroesch/raspower repository on GitHub, at the commit this page was made from: the board is Netzteil.kicad_pcb and its schematic Netzteil.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Netzteil design in my own project?
Its repository states no licence, so its author keeps all rights: ask kkroesch before reusing the design.
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