The MT3608 is a step-up (boost) DC-DC converter that can boost input voltages from 2V to 24V up to 28V at up to 2A. Used on USB boost modules to generate 5V or 12V from a LiPo battery.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | EN | Enable, HIGH = on | I/O |
| 2 | GND | Ground | GND |
| 3 | VIN | Input voltage | PWR |
| 4 | SW | Switching node to inductor | I/O |
| 5 | FB | Feedback for output regulation | ADC |
| 6 | N/C | No connection | GND |