Use the nPM1304 EK with an nRF54L15 DK

The nPM1304 EK can power the nRF54L15 System on Chip (SoC) as a host device on the nRF54L15 Development Kit (DK).

Perform the following steps to connect and configure the EK with the nRF54L15 DK:

1. Connect the nPM1304 EK to the nRF54L15 DK as shown in Connecting nPM1304 EK with nRF54L15 DK.
2. To program and debug nRF54L15, connect a USB cable to the USB port J4 on the DK.
   This powers only the IMCU used for programming and debugging.
3. On the EK, disconnect the USB-C cable from J5 to put the EK in standalone mode.
   This disables the nPM Controller.
4. Power the EK by connecting to a power input source: VBUS, VBAT, or both.

Figure 1. Connecting nPM1304 EK with nRF54L15 DK

The following table shows the connections between the EK and the nRF54L15 DK. The actual header pin indices are given in parentheses in the table, as the port pin names on the nRF54L15 DK do not align with the header pins.

Table 1. Connections between nPM1304 EK and nRF54L15 DK

Function	nPM1304 EK		nRF54L15 DK		Comment
	Pin name	Location	Pin name	Location
Power	VOUT2	P5 pin 1	VDD	P6 pin 2	3.0 V. Use default VSET2 on EK.
	GND	P5 pin 3	GND	P6 pin 1	Ground.
TWI	SCL	P11 pin 1	P1.12	P1 pin 12 (15)	Connect to a TWI compliant General-Purpose Input/Output (GPIO) on DK.
	SDA	P11 pin 2	P1.11	P1 pin 11 (14)	Connect to a TWI compliant GPIO on DK.
GPIO	GPIO0	P12 pin 1	P0.04	P0 pin 4 (7)	Connect to an interrupt compliant GPIO on the DK.
	GPIO1	P12 pin 2	P0.03	P0 pin 3 (6)	Connect to an interrupt compliant GPIO on the DK.
	GPIO2	P12 pin 3	P0.02	P0 pin 2 (5)	Connect to an interrupt compliant GPIO on the DK.
	GPIO3	P12 pin 4	P1.10	P1 pin 11 (13)	Connect to an interrupt compliant GPIO on the DK.
	GPIO4	P12 pin 5	P0.00	P0 pin 0 (3)	Connect to an interrupt compliant GPIO on the DK.

Note: Only GPIO ports P0 and P1 on the nRF54L15 SoC can be used for interrupt events.

Note: GPIO port P0 on the nRF54L15 SoC is also used for UART0.