Nrf52840 1.8V regulated supply for external components

[atrons]

Hi, all

         We going to connected a low power comsuption sensor with 1.8V power supply.  I noticed Nrf52840 specifecation list feature point  "1.8 V-3.3 V regulated supply for external components". It looks Nrf52840 could supply extern sensor power directly, but how we implement it from hardware and software side ?

[Amanda Hsieh]

Hi Guorong, 

In High Voltage mode, the output from REG0 can be used to supply external circuitry from the VDD pin. The VDD output voltage is configured in the register REGOUT0 for 1.8V, 2.1V, 2.4V, 2.7V, 3.0V and 3.3V.

Please see External circuitry supply and this post might help. 

-Amanda H.