nrf5340 internal LDO output pin and max current capacity

[szhaulai]

Hi 

I have similar question to the post https://devzone.nordicsemi.com/f/nordic-q-a/7013/nrf51822-internal-ldo-output-pin . 

I need a stable voltage to elevate the reference voltage to an amplifier. Can I use the LDO output(normal voltage mode in NRF5340) from pin DCCD(B10) or DECD(A15). What will be the voltage and the maximum rating current. I cannot find them in the datasheet. 

In the old post nrf53822 the internal LDO pin were not recommended. I wonder if the design has changed in NRF5340. 

[ketiljo]

It's not recommended to use the internal regulators as a reference voltage. The voltage will very depending on the state of the regulator. It will change mode depending on the load the regulator has to supply.