The nRF54L15 DK is fully powered through the J3 USB connector for the debugger (5 V).
The 5 V domain powers the main supply voltage (P5V0). The 5 V is supplied to the nRF54L15 DK from the J3 USB connector.
The main power domains on the nRF54L15 DK are the following.
- nRF:VDD programmable voltage from 1.8 V to 3.3 V
- VDD:IO buffered nRF:VDD voltage
The nPM1300 PMIC supplies the nRF54L15 SoC VDD:nRF input with a default voltage of 1.8 V. To change the VDD:nRF voltage, use nRF Connect for Desktop's Board Configurator application.
The buffered VDD:nRF is called VDD:IO. The nRF54L15 DK uses the VDD:nRF voltage follower to make sure that leakage currents are not drawn from the nRF54L15 SoC device during low current measurements.
For more information about power sources, see nRF54L15 SoC external power with DK functionality.