Dear all,
I'm designing a circuit that should allow powering the nRF52840 board with either an USB power supply (USB2) or a (non-rechargeable) CR2032 battery (B1). According to the reference schematics, in the former situation only VDDH need to be connected, while in the latter, VDD and VDDH need to be connected. To limit voltage drop, I'm thinking of implementing P MOSFETs (Q2, Q3):
Would this work or are there other/better solutions?
Thanks a lot in advance!