The nPM2100 EK can be powered by USB or a battery using the battery add-on board. The USB supplies the nPM2100 Power Management Integrated Circuit (PMIC) through an Low-Dropout Regulator (LDO), with selectable voltages of 1.5 V or 3.0 V, that can be configured with a jumper.
The LDO enables evaluation of the nPM2100 PMIC by supplying selectable voltage levels without the need for a battery. Connecting a compatible battery to the EK allows for the evaluation of the nPM2100 features in an environment similar to a custom application. For more information on selecting the power supply, see VBAT slide switch.
The following figure shows the power supply options for the EK.
The following table shows the connection of the battery source to the EK.
| Input source | Part | Connector type | Comment | |
|---|---|---|---|---|
|
Battery |
VBAT 0.7 V to 3.4 V |
P1 | Pin socket | VBAT on pins 1 and 3 |
| P2 | Pin header | VBAT on pins 1 and 2 | ||