2 layers27.9 × 16.5 mm
2 layers36 × 16.8 mm
Usbc lipo charger
danielkm-ee/pcb_portfoliopcb schematics and layouts
- Size
- 36 × 16.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 15
- Pads
- 52
- Tracks, vias
- 45, 41
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 Jun 2025
- Updated
- 4 Jul 2025
Overview
Usbc lipo charger is an open-source printed circuit board by danielkm-ee, from the danielkm-ee/pcb_portfolio repository on GitHub. It is a 2-layer board of 36 × 16.8 mm with 18 parts on 15 nets, routed with 45 tracks and 41 vias.
Its parts include 9 resistors, 3 diodes, 2 capacitors, 2 connectors and 1 IC. It belongs with the power boards of this library.
README
usbc_lipo_charger/README.mdBattery Control Module Board
Uses a battery controller IC to charge lithium ion batteries using a USB C port.
Specifications
- Supports USB-C charging, 5V 3A
- Charges single cell, 3.7V lithium ion batteries
- Overvoltage and overcurrent protections for USB port
Emphasis
- Low cost
- Small profile
- Minimal design
Schematic
view/download pdf here: Download PDF.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 470 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 2 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 1 | 1.54k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 69.8k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | Conn_01x02 | Connector_Molex:Molex_SPOX_5268-02A_1x02_P2.50mm_Horizontal | J2 |
| 1 | MCP73833-xxx-UN | Package_SO:MSOP-10_3x3mm_P0.5mm | U1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | MOLEX:USB_TypeC_2171750001_MOL | J1 |
Questions
How big is the Usbc lipo charger PCB?
It measures 36 × 16.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usbc lipo charger use?
18 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 Usbc lipo charger KiCad files?
From the danielkm-ee/pcb_portfolio repository on GitHub, at the commit this page was made from: the board is usbc_lipo_charger/usbc_lipo_charger.kicad_pcb and its schematic dorji_radio/dorji_radio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usbc lipo charger design in my own project?
Its repository states no licence, so its author keeps all rights: ask danielkm-ee before reusing the design.
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