4 layers95 × 95 mm
Cube motherboard
willem-pennings/balancing-cube
A cube that balances itself in a corner or edge using reaction wheels
52 parts1.1kGPL-3.0
2 layers
Buck converter
unerqa/unerqa-buck-converter- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 4
- Pads
- 26
- Tracks, vias
- 17, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Jun 2026
- Updated
- 2 Jun 2026
Overview
Buck converter is an open-source printed circuit board by unerqa, from the unerqa/unerqa-buck-converter repository on GitHub. It is a 2-layer board with 11 parts on 4 nets, routed with 17 tracks and 0 vias.
It is built around the LM2596S-5.0 and SS34. Its parts include 2 capacitors, 2 connectors, 1 IC, 1 diode and 1 inductor. It belongs with the power boards of this library.
Main components
2Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J2 |
| 1 | 220 uF | Capacitor_SMD:CP_Elec_8x10.5 | C2 |
| 1 | 33uH | Inductor_SMD:L_12x12mm_H8mm | L1 |
| 1 | 680 uF | Capacitor_SMD:CP_Elec_10x10 | C1 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | SS34 | Diode_SMD:D_SMC | D1 |
The 7 most common of 11 parts.
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Questions
What parts does the Buck converter use?
11 parts, built around the LM2596S-5.0 and SS34. 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 Buck converter KiCad files?
From the unerqa/unerqa-buck-converter repository on GitHub, at the commit this page was made from: the board is buck-converter/buck-converter.kicad_pcb and its schematic buck-converter/buck-converter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Buck converter design in my own project?
Its repository states no licence, so its author keeps all rights: ask unerqa before reusing the design.