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4 layers19.8 × 33.7 mmLBC05, the printed circuit board in 3D

A compact open-source single-cell Li-Ion/Li-Po battery charger based on the TI BQ24075. Features USB Type-C 5V input, programmable charging up to 1.3A, integrated power-path management, and CHG/PGOOD status outputs. Designed in KiCad for embedded systems, IoT devices, and portable electronics.

Size
19.8 × 33.7 mm
Copper layers
4
Thickness
1.6 mm
Parts
22
Nets
14
Pads
73
Tracks, vias
200, 22
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
2 Jul 2026
Updated
2 Jul 2026

Overview

LBC05 is an open-source printed circuit board by Vulpini-cmd, from the Vulpini-cmd/LBC05 repository on GitHub, published under the MIT licence. It is a 4-layer board of 19.8 × 33.7 mm with 22 parts on 14 nets, routed with 200 tracks and 22 vias.

It is built around the BQ24075RGT. Its parts include 7 resistors, 3 capacitors, 2 diodes, 1 IC and 1 connector. It belongs with the power boards of this library.

Main components

1

README

README.md

LBC05

A compact open-source single-cell Li-Ion/Li-Po battery charger based on the TI BQ24075. Features USB Type-C 5V input, programmable charging up to 1.3A, integrated power-path management, and CHG/PGOOD status outputs. Designed in KiCad for embedded systems, IoT devices, and portable electronics.

Parts

22
QtyValueFootprintReferences
6TestPointTestPoint:TestPoint_Pad_D4.0mmTP1(G)1, TP2, TP3, TP4, TP11, TP12
21kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR4, R5
24.7uFCapacitor_SMD:C_0805_2012MetricC2, C3
25.1KResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR6, R7
11.18kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR2
110kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR1
11uFCapacitor_SMD:C_0805_2012MetricC1
1750Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR3
1BQ24075RGTPackage_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mmU1
1GREENLED_SMD:LED_0805_2012MetricD2
1REDLED_SMD:LED_0805_2012MetricD1
1USB_C_Receptacle_PowerOnly_24PConnector_USB:USB_C_Receptacle_GCT_USB4085J1

The 20 most common of 22 parts.

Questions

How big is the LBC05 PCB?

It measures 19.8 × 33.7 mm and has 4 copper layers, 1.6 mm thick.

What parts does the LBC05 use?

22 parts, built around the BQ24075RGT. 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 LBC05 KiCad files?

From the Vulpini-cmd/LBC05 repository on GitHub, at the commit this page was made from: the board is lbc05 - Github/PCB/lbc05.kicad_pcb and its schematic lbc05 - Github/Schematic/lbc05.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the LBC05 design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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