• Vin - this is the power input pin. It can be powered with 3V to 5.5V.
• V+ - this is the positive voltage output. It can range from +6V to +15V.
• V- - this is the negative voltage output. It can range from -6V to -15V.
• GND - common ground
• EN - this is the enable pin. You can tie this pin to GND to disable the TPS65131.

Trimmer Pots

Two trimmer pots let you dial in the voltage output on the positive (V+) and negative (V-) pins. Because the trimmer pots can vary, you may find +/-0.5V variance on the bookend values. Each output has a maximum output of 150mA.

• Positive voltage trimmer pot - On the left side of the board is the trimmer pot for the positive voltage output. It is labeled +6>15V on the board silk.
• Negative voltage trimmer pot - On the right side of the board is the trimmer pot for the negative voltage output. It is labeled -6>15V on the board silk.