2 layers290.1 × 130 mm
2 layers25 × 13 mm
USBC LDO
red-scorp/USBC-LDO3Small DIY board with USB type-C and LDO
- Size
- 25 × 13 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 11
- Pads
- 43
- Tracks, vias
- 65, 37
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 Mar 2024
- Updated
- 17 Mar 2024
Overview
USBC LDO is an open-source printed circuit board by red-scorp, from the red-scorp/USBC-LDO repository on GitHub. It is a 2-layer board of 25 × 13 mm with 9 parts on 11 nets, routed with 65 tracks and 37 vias.
It is built around the AMS1117-3.3. Its parts include 3 resistors, 2 capacitors, 2 connectors, 1 IC and 1 diode.
Main components
1README
README.mdUSBC-LDO Project
The USBC-LDO project is a aimed to create low-cost DIY board with USB-C with LDO power supply.
USBC-LDO Board
The USBC-LDO is simple board that provides a USB-C connector and a low-dropout voltage regulator (LDO) to power a small device from a USB-C power source. The board is designed to be as small as possible and to be used in a variety of applications where a small, low-cost, and easy-to-use power supply is needed.
Current design is based on the LM1117 LDO voltage regulator, which can provide up to 1A of output current at 3.3V. However, the board can be easily modified to use a different LDO voltage regulator if needed.
Preview:
You can view the Schematics in PDF format for detailed information.
STEP 3D file is available here.
Features:
- USB-C connector configured for 5V power delivery
- 3.3V LDO voltage regulator up to 1A output current
- LED power indicator
CAM files, as well as the BOM and CPL files for JLCPCB and NextPCB, are available.
Version History
v1.0
Initial release.
Links
- TBD
How to Help
Your contributions as code, resources, or finances are welcome! Please contact me directly via email at andriy.golovnya@gmail.com or through my GitHub profile.
If you'd like to make a financial contribution, you can donate via PayPal or Ko-Fi. Your support is greatly appreciated.
Thanks in advance!
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the USBC LDO PCB?
It measures 25 × 13 mm and has 2 copper layers, 1.6 mm thick.
What parts does the USBC LDO use?
9 parts, built around the AMS1117-3.3. 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 USBC LDO KiCad files?
From the red-scorp/USBC-LDO repository on GitHub, at the commit this page was made from: the board is USBC-LDO.kicad_pcb and its schematic USBC-LDO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the USBC LDO design in my own project?
Its repository states no licence, so its author keeps all rights: ask red-scorp before reusing the design.