Switching frequency of DC/DC regulator in nRF52832?

[abkirchhoff]

What is the switching frequency of the DC/DC regulator in the nRF52832? The DC/DC is great for reducing power consumption, but I am worried about the switching noise getting into my nearby analog circuits. Any other noise-related information or recommendations about the DC/DC regulator?

Thanks!

[Håkon Alseth]

Hi,

The DCDC is a buck-regulator, and the switching frequency is 8 MHz. Unfortunately, we do not have any parameters regarding noise. The DCDC cannot be used for anything else than for internal use (on when CPU/RADIO is active) and cannot be tapped out for external usage.

Cheers, Håkon

[Håkon Alseth]

Any time that the DCDC is active, it will switch with a frequency of 8 MHz, regardless of TASKS_CONSTLAT or TASKS_LOWPWR.