2 layers34 × 19 mm
Mgl switch
leggomyfroggo/mgl_switch
Open source design for a Game Boy Light replacement switch.
20 parts10
2 layers22 × 15 mm
CGBMOSFETSwitch
leggomyfroggo/GameBoyDump5Random stuff I've made for Game Boy Projects.
- Size
- 22 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 7
- Pads
- 24
- Tracks, vias
- 39, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 19 May 2024
- Updated
- 21 May 2025
Overview
CGBMOSFETSwitch is an open-source printed circuit board by leggomyfroggo, from the leggomyfroggo/GameBoyDump repository on GitHub. It is a 2-layer board of 22 × 15 mm with 8 parts on 7 nets, routed with 39 tracks and 12 vias.
It is built around the DMP6350SQ-7 and SI2312BDS-T1-BE3-HXY. Its parts include 3 transistors, 1 resistor and 1 switch. It belongs with the retro computing and games boards of this library.
Main components
2README
PCBs/CGBMOSFETSwitch/README.mdOverview
This is a replacement power switch circuit for the Game Boy Color that utilizes MOSFETs to switch system power, rather than shunting it directly through the physical switch. In theory, this should ensure proper functionality even when the switch is dirty.
Disclaimer
I have installed this in one GBC, and it continues to work after ~3 years, but I can't make specific claims about longevity.
BOM
| Designator | Description | Footprint | Part # |
|---|---|---|---|
| R1 | 10K | 0603 | - |
| Q2, Q3 | P-FET | SOT-23 | DMP6350SQ-7 |
| Q1 | N-FET | SOT-23 | SI2312BDS-T1-BE3 |
| SW1 | SP3T switch | - | MSKT-13C01 |
License
CGB MOSFET Switch © 2022 by Chris Hackmann is licensed under CC BY-NC-SA 4.0
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | DMP6350SQ-7 | SamacSys_Parts:SOT96P240X110-3N | Q2, Q3 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | CAP_DRAIN | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | GBC_VCC | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | SI2312BDS-T1-BE3 | SamacSys_Parts:SOT95P237X112-3N | Q1 |
| 1 | SW_SP3T | SamacSys_Parts:MSKT-13C01 | SW1 |
| 1 | SW_VCC | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
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Questions
How big is the CGBMOSFETSwitch PCB?
It measures 22 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CGBMOSFETSwitch use?
8 parts, built around the DMP6350SQ-7 and SI2312BDS-T1-BE3-HXY. 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 CGBMOSFETSwitch KiCad files?
From the leggomyfroggo/GameBoyDump repository on GitHub, at the commit this page was made from: the board is PCBs/CGBMOSFETSwitch/project.kicad_pcb and its schematic PCBs/CGBMOSFETSwitch/project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CGBMOSFETSwitch design in my own project?
Its repository states no licence, so its author keeps all rights: ask leggomyfroggo before reusing the design.