PD-01Open Source Hardwaredesigned
USB-C PD Trigger
Negotiate any fixed PDO from any USB-C PD power supply. CH224K + a couple straps + screw terminal output. ~35×25mm.
Readout
Board35×25mm
Layers2layer
Components10rows·10parts
BOM Cost$0.89/ unit
Placementextracted
DRC0S/0U
Schematics1sheets
Info
A pocket-sized USB-C PD trigger. Plug in any USB-C PD-capable charger, get the voltage you want out the screw terminal. CH224K does the negotiation; a strap resistor selects the PDO (5/9/12/15/20V).
Useful for: powering 12V LED strips off a laptop charger, running 9V guitar pedals from a USB-C battery bank, and anything else that needs more than 5V from a USB-C source.
Specification
| Trigger IC | TR-01 CH224K | SOP-8, USB-C PD 3.0 sink, supports 5/9/12/15/20V |
| Default voltage | VS-01 12V | CFG2 strap to GND via 4.7k. Change R3 value to select other PDOs. |
| Connector | CN-01 USB-C 16-pin | HRO TYPE-C-31-M-12 — power + CC only, no data |
| Output | OT-01 2-pin screw terminal | VBUS + GND. Up to 5A on 20V PDO with thick traces. |
| Board | PB-01 2-layer, 35 × 25 mm | 9 components, ~$1.50 in parts |
Architecture
Features
PD-F1
Tiny + cheap
9 components, all 0402/SOP-8/THT screw terminal. Fab cost ~$5 for qty 5 at JLCPCB.
PD-F2
Strap-configurable
Change one resistor (R3) to change the PDO voltage. CFG strap table on the silk.
PD-F3
PG indicator
Green LED on the PG output — lights when the PD negotiation succeeds and VBUS is at the requested voltage.
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Bill of Materials
10 rows priced live from JLCPCB · refreshed 2026-04-27
10 rows
· 10 components
· Total $0.89
Hover row → component highlights on board
| Ref | Category | MPN | Description | Qty | Unit | Ext | Stock | Links |
|---|---|---|---|---|---|---|---|---|
| J1 | Connector_USB | TYPE-C-31-M-12 | USB-C 16-pin SMD receptacle | 1 | $0.13 | $0.13 | In stock | LCSC |
| J2 | Phoenix_MPT_2P | MPT 0.5/2-2.54 | 2-pin 2.54mm screw terminal | 1 | $0.45 | $0.45 | Low | LCSC |
| U1 | SOP-8 | CH224K | USB-C PD3.0 sink trigger IC | 1 | $0.29 | $0.29 | In stock | LCSC |
| R1 | R_0402 | RC0402FR-075K1L | 5.1k 0402 1% (CC pulldown) | 1 | $0.0004 | $0.0004 | In stock | LCSC |
| R2 | R_0402 | RC0402FR-075K1L | 5.1k 0402 1% (CC pulldown) | 1 | $0.0004 | $0.0004 | In stock | LCSC |
| R3 | R_0402 | RC0402FR-074K7L | 4.7k 0402 1% (CFG2 strap = 12V) | 1 | $0.0004 | $0.0004 | In stock | LCSC |
| R4 | R_0402 | RC0402FR-071KL | 1k 0402 1% (LED) | 1 | $0.0004 | $0.0004 | In stock | LCSC |
| C1 | C_0402 | CL05B104KO5NNNC B | 100nF 50V X7R 0402 | 1 | $0.0008 | $0.0008 | In stock | LCSC |
| C2 | C_0805 | CL21A106KAYNNNE B | 10uF 25V X5R 0805 | 1 | $0.0068 | $0.0068 | In stock | LCSC |
| D1 | LED_0805 | LTST-C170KGKT | Green 0805 LED | 1 | $0.02 | $0.02 | In stock | LCSC |
| Total | $0.89 | |||||||
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Wiring
Real KiCad schematic auto-generated from the designgraph TOML.
1 sheet · click to open
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Mech
2-layer, 35 × 25 mm. Tiny. Auto-routed by Rust pipeline. Front silk has the CFG strap table for easy reconfiguration.
35 × 25 mm 2 layer
PD-01 Front
PD-01 Back
DRC Report
2026-05-05T18:14:11
0
Shorts
0
Unconnected
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Parity
0
Violations
Component Map · Dimensions
Hover BOM ↔ Map
Ready
Pocket-sized enclosure: PCB outline + 2mm wall clearance, four M2 standoffs near the corners. USB-C plug enters from the top edge, screw terminal exits the bottom.
3D Model
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PD-01 Copper Layers
X-Ray Layer Viewer
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Instructions
Not yet populated for this project.
→ Roadmap item INST-01: assembly guide authoring.
→ Roadmap item INST-01: assembly guide authoring.