DC-DC Buck Mini Module, Configurable 3.3V or 5V Output
Compact DC-DC buck mini module with 5–36V input and configurable 3.3V or 5V output. Immersion gold PCB finish for reliable connections.
Pinout
- VIN+left-side interface
Power input positive terminal. Waveshare product page interface table lists VIN+ as power input positive.
Type · PowerVoltage · 5 to 36 V input for 3.3 V mode, 6 to 36 V input for default 5 V mode - VIN-left-side interface
Power input negative terminal. Waveshare product page interface table lists VIN- as power input negative.
Type · GroundVoltage · input return / 0 V reference - VOUT(+)right-side interface
Regulated power output positive terminal. Waveshare product page interface table lists VOUT(+) as power output positive.
Type · PowerVoltage · 5 V output by default, configurable to 3.3 V by resoldering the onboard 0R resistor - GND(-)right-side interface
Power output negative terminal. Waveshare product page interface table lists GND(-) as power output negative.
Type · GroundVoltage · output return / 0 V reference
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VIN+ | left-side interface | Power | Power input positive terminal. Waveshare product page interface table lists VIN+ as power input positive. | 5 to 36 V input for 3.3 V mode, 6 to 36 V input for default 5 V mode |
| VIN- | left-side interface | Ground | Power input negative terminal. Waveshare product page interface table lists VIN- as power input negative. | input return / 0 V reference |
| VOUT(+) | right-side interface | Power | Regulated power output positive terminal. Waveshare product page interface table lists VOUT(+) as power output positive. | 5 V output by default, configurable to 3.3 V by resoldering the onboard 0R resistor |
| GND(-) | right-side interface | Ground | Power output negative terminal. Waveshare product page interface table lists GND(-) as power output negative. | output return / 0 V reference |
Pin details
4 connections- VIN+left-side interface
Power input positive terminal. Waveshare product page interface table lists VIN+ as power input positive.
PowerVoltage · 5 to 36 V input for 3.3 V mode, 6 to 36 V input for default 5 V mode - VIN-left-side interface
Power input negative terminal. Waveshare product page interface table lists VIN- as power input negative.
GroundVoltage · input return / 0 V reference - VOUT(+)right-side interface
Regulated power output positive terminal. Waveshare product page interface table lists VOUT(+) as power output positive.
PowerVoltage · 5 V output by default, configurable to 3.3 V by resoldering the onboard 0R resistor - GND(-)right-side interface
Power output negative terminal. Waveshare product page interface table lists GND(-) as power output negative.
GroundVoltage · output return / 0 V reference
Start wiring
3.3 V · 5 V · Module
The family now includes 9 V wall adapters at 650 mA, 1 A and 2.55 A. The voltage class matches, but current headroom, plug region, connec…
Module pins: VIN+, VOUT(+), VIN-, GND(-). Schematik maps them to your board in the app.
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