2 layers20.5 × 24.8 mm
2 layers37.7 × 15.6 mm
Usb power
swampwitchpedals/usb-powerUSB 5v to 9v converter
- Size
- 37.7 × 15.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 9
- Pads
- 27
- Tracks, vias
- 33, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Oct 2024
- Updated
- 1 Oct 2024
Overview
Usb power is an open-source printed circuit board by swampwitchpedals, from the swampwitchpedals/usb-power repository on GitHub. It is a 2-layer board of 37.7 × 15.6 mm with 8 parts on 9 nets, routed with 33 tracks and 4 vias.
Its parts include 2 capacitors, 2 connectors, 1 resistor, 1 IC and 1 diode.
README
README.mdUSB POWER
Have you ever needed to power a guitar pedal at your desk? What about on the go? Maybe you're away from your board and you just want to test something out, but you've got no power bank.
Enter the USB power converter. This USB-A plugin device provides a 9V(ish) power source to a standard DC power jack so that you can power a pedal in any situation.
Project Details
Includes a zip file of gerber data for the PCB, as well as BOM and Pick'n'Place files for JLCPCB. All files found here [blocked].
Technical Details
The chip on this board is the LTC660, a low-power CMOS charge pump that can provide up to 100mA of current. The basic schematic is taken from the datasheet
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10uF | Capacitor_SMD:CP_Elec_6.3x5.4 | C4, C5 |
| 1 | 4k7 | swamp-witch:R_0603 | R3 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LOGO | swamp-witch-designs:season of the witch - tree | G*** |
| 1 | LTC660 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | USB_A | swamp-witch:USB A RAPHCUA20E | J2 |
| 1 | dc_jack | swamp-witch:power_jack | J1 |
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Questions
How big is the Usb power PCB?
It measures 37.7 × 15.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb power use?
8 parts. 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 Usb power KiCad files?
From the swampwitchpedals/usb-power repository on GitHub, at the commit this page was made from: the board is usb-power.kicad_pcb and its schematic usb-power.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb power design in my own project?
Its repository states no licence, so its author keeps all rights: ask swampwitchpedals before reusing the design.