about current consumption at 1.8V

[Qinghua]

Hi, Schematic and Code As shown above, VCC 3V (DEC2 and VCC open) current is only 3.8uA, but VCC 1.8V (DEC2 and VCC short circuit) current exceeds 1mA, what am I mistaken? Would like to hear any suggestions about Low voltage mode, thank you!

[Roger Clark]

No.

nRF5x hardware will operate at 1.8V, and the software is voltage independent.

See

www.nordicsemi.com/.../nRF52832

or

www.nordicsemi.com/.../nRF51822

[Sigurd]

Hi,

Please make sure you do a power-reset before starting any measurement. After programming the chip the nRF51 will stay in debug mode which consumes ~1mA