Peripheral load switch
matthias-bs·peripheral-load-switch
About the Peripheral load switch PCB
Peripheral load switch is an open source PCB design by matthias-bs, published on GitHub under the SHL-2.1 license. It is a 2-layer board measuring 25.4 × 14 mm, with 6 components from 6 distinct parts.
Other key parts include the SiP32431DR3. By type, the board carries 2 connectors, 1 IC and 1 resistor.
From the project
MCU Peripheral Load Switch
Compact SMD peripheral load switch based on the Vishay SiP32431, designed for enabling/disabling power to microcontroller peripherals.
A minimal, all-SMD load switch board for switching a peripheral's supply voltage under microcontroller control. The design uses the Vishay SiP32431DR3 high-side switch in a SC-70-6 (SOT-363) package. Board-edge castellated contacts (J2, half-hole, DNP) allow direct PCB-to-PCB soldering or surface mounting. An optional 5-pin 2.54 mm pitch pin header (J1) provides access for prototyping with breadboards or Dupont wires.

Main components on the Peripheral load switch
Peripheral load switch bill of materials (BOM)
6 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SiP32431DR3 | SOT-363_SC-70-6 | U1 |
| 1 | Conn_01x05_Socket | PinSocket_1x05_P2.54mm_Vertical | J1 |
| 1 | Conn_01x05_Socket | Edge_HalfHole_5Pin_2.54mm | J2 |
| 1 | 1uF | C_0805_2012Metric | C_IN1 |
| 1 | 0.1uF | C_0805_2012Metric | C_OUT1 |
| 1 | 1M | R_0805_2012Metric | R1 |
Peripheral load switch design files
The KiCad project lives in the matthias-bs/peripheral-load-switch repository on GitHub; these links point at the commit this page was built from.
- Layoutload_switch.kicad_pcb
- Schematicload_switch.kicad_sch
Peripheral load switch: common questions
How big is the Peripheral load switch PCB?
The Peripheral load switch measures 25.4 × 14 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Peripheral load switch?
6 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the Peripheral load switch design files?
From the matthias-bs/peripheral-load-switch repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Peripheral load switch design in my own project?
It is published under SHL-2.1, which limits how it may be reused; read the license before building on it.