Hi,
I use a step-down converter(not the integrated one) to generate 1,85V for the nRF51822 in my application.
When the applications starts the output voltage from the converter grows "slow" to 1,85V.
I recognized, that the nRF draws some current bellow the 1,75V minimum voltage.
So i started to measure:
In the screenshot bellow you can see the input voltage in the upper window and the current in mA(not mV!!!) in the under window.
You can see that from 0,8-1,6V the nRF draws around 0,5mA and from 1,6-1,75V 1,5mA. Then the uC starts up and go to idle.
Is there a way to reduce this current without using external components like FETs?
Thank you for your help.