| Pin | Name | Function |
|---|---|---|
| 1 | VIN+ | Input +volt |
| 2 | VIN- | Input ground |
| 3 | VOUT+ | Regulated output |
| 4 | VOUT- | Output ground |
Summary
Adjustable step-down (buck) converter module. Takes a higher DC input voltage and brings it down to a lower, regulated output — commonly used to power 5V or 3.3V electronics from a battery or higher-voltage supply. Output voltage is set with the onboard potentiometer.
- Type: Step-down (buck) switching regulator
- Input voltage: 4.5V - 40V
- Output voltage: 1.25V - 37V (adjustable)
- Max output current: 3A (with adequate cooling)
- Switching frequency: 150kHz