Current consumption in NRF52833

[lara]

Hi all,

I’m working with an nRF52833 using SDK 2.8 and trying to enable DCDC mode to reduce current consumption.

I tried adding:

CONFIG_BOARD_ENABLE_DCDC=y

but I got the following warning and error:

warning: attempt to assign the value 'y' to the undefined symbol BOARD_ENABLE_DCDC
error: Aborting due to Kconfig warnings

In my overlay setup, I added:

&reg0 {
    status = "disabled";
};

&reg1 {
    regulator-initial-mode = <NRF5X_REG_MODE_DCDC>;
};

 I still read a current consumption of around 130 µA (with SPI and I2C disabled, ADC only enabled).

Has anyone faced this issue?
Did you manage to achieve ~10 µA, and if so, what changes were required?

Thanks in advance.

[runsiv]

Okey thanks. Are you measuring for the whole board or just the 52833? Is UART connected when you do the measurement? 

The configs you have added makes sense to me so I don't think there is anything wrong there

Regards

Runar