nRF52840: Any side effect if connecting the inductor at DCCH pin in normal voltage mode?

[Hsu]

Hi Sir,

As we know the inductor connected to the DCCH pin is a DCDC function for high voltage mode.

But what side effect we can see if we connected the inductor at the DCCH pin in normal voltage mode?

For the side effect, any difference between the DCDC mode (normal voltage mode) and LDO mode?

The example schematic is as below.

Thank you.

BRs Han

[ketiljo]

Hi Hanyu

No problem, the DCDC converter will always be disabled in normal voltage mode so the DCCH pin will be left floating. It does nothing. 

cheers,

Ketil