How do I run the nRF54L15-DK in LDO mode?

[Kenta]

I'm using the nRF54L15-DK to run a Bluetooth peripheral_hr project in DCDC mode, but if I write

nrf_regulators_vreg_enable_set(NRF_REGULATORS, NRF_REGULATORS_VREG_MAIN, false);

at the beginning of main.c, will it work in LDO mode?

Best regards.

[runsiv]

Hi 

I suspect so, I have not verified it yet, but why would you like to turn of the DCDC in main instead of using Kconfig option? 

Regards

Runar

[Kenta]

Hi, runsiv.

To compare the current values ​​in DCDC mode and LDO mode, I didn't know how to write prj.conf to set it to LDO mode, so I thought I could set it to LDO mode by calling

nrf_regulators_vreg_enable_set(NRF_REGULATORS, NRF_REGULATORS_VREG_MAIN, false);

If it can be set with Kconfig(prj.conf), it would be helpful if you could tell me how to write it.

Best regards.

[runsiv]

Hi

It appears that with the release of NCS 2.8 it was moved from Kconfig to the devicetree

For DCDC

&reg1 {

regulator-initial-mode = <NRF5X_REG_MODE_DCDC>;

};

If you turn of the DCDC it will use the LDO 

Regards

Runar