ATX12VO-5VSB-to-12VSB-Adapter
RandomDelta6·ATX12VO-5VSB-to-12VSB-Adapter
About the ATX12VO-5VSB-to-12VSB-Adapter PCB
ATX12VO-5VSB-to-12VSB-Adapter is an open source PCB design by RandomDelta6, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 16.9 × 17.3 mm, with 20 components from 16 distinct parts.
Other key parts include the FP6296. By type, the board carries 9 capacitors, 7 resistors, 2 diodes, 1 IC and 1 inductor.
From the project
ATX12VO compatible +5VSB to +12VSB inline adapter
This is a ATX12VO Standard compatible +5VSB to +12VSB Converter Circuit. It is based around the FP6296 chip which is a current mode boost DC-DC converter. This board enables older power supplies which output 12V, 5V, 3V Rails to be compatible with the new ATX12VO Standard. This board features a universal design and is compatible with Power Supplies from any lineup of any manufacturer. Please refer to your PSU output pinout and ATX12VO Connector pinout to route the connecting wires for the connector cable properly. This board only converts the +5VSB rail to +12VSB rail as needed in ATX12VO…

Main components on the ATX12VO-5VSB-to-12VSB-Adapter
ATX12VO-5VSB-to-12VSB-Adapter bill of materials (BOM)
20 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FP6296 | FP6296 | U1 |
| 2 | SH54BF | diode | D1, D2 |
| 1 | L 3R3 10A | INDM125125X800N | L1 |
| 4 | 22uF | C_0805_2012Metric | C1, C2, C5, C6 |
| 1 | 1uF | C_0603_1608Metric | C3 |
| 1 | 2.2nF | C_0402_1005Metric | C4 |
| 1 | 0.1uF | C_0603_1608Metric | C9 |
| 1 | 470pF | C_0402_1005Metric | C10 |
| 1 | 1nF | C_0603_1608Metric | C12 |
| 1 | 200K | R_0402_1005Metric | R1 |
| 1 | 22K | R_0402_1005Metric | R2 |
| 1 | 100K | R_0402_1005Metric | R3 |
| 1 | 30K | R_0402_1005Metric | R4 |
| 1 | 100 | R_0603_1608Metric | R5 |
| 1 | 1.5 | R_0603_1608Metric | R8 |
| 1 | 1K | R_0603_1608Metric | R10 |
ATX12VO-5VSB-to-12VSB-Adapter design files
The KiCad project lives in the RandomDelta6/ATX12VO-5VSB-to-12VSB-Adapter repository on GitHub; these links point at the commit this page was built from.
- Layout12VSB.kicad_pcb
- Schematic12VSB.kicad_sch
ATX12VO-5VSB-to-12VSB-Adapter: common questions
How big is the ATX12VO-5VSB-to-12VSB-Adapter PCB?
The ATX12VO-5VSB-to-12VSB-Adapter measures 16.9 × 17.3 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ATX12VO-5VSB-to-12VSB-Adapter?
20 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the ATX12VO-5VSB-to-12VSB-Adapter design files?
From the RandomDelta6/ATX12VO-5VSB-to-12VSB-Adapter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ATX12VO-5VSB-to-12VSB-Adapter design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which RandomDelta6 chose for the repository.