https://devzone.nordicsemi.com/f/nordic-q-a/2963/how-to-disable-de-dc-dc-converterHi all, I would like to know how to disable de DC/DC Converter... My main file is something like this: void sleep() { __SEV(); __WFE(); __WFE(); } int main (void) { NRF_POWER-&gt;DCDCEN = NRF_POWER_DCDC_MODE_OFF; while (1) { en-USTelligent Community 13Tue, 01 Jul 2014 18:20:27 GMThttps://devzone.nordicsemi.com/thread/11245?ContentTypeID=1Tue, 01 Jul 2014 18:20:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b8bd9e8e-cc23-4d53-93d3-4d56c18bbb32John<p>According to the reference manual, the DC/DC converter is disabled at reset, so you shouldn&#39;t need to explicitly shut it off yourself. See section 11.2.7 of the reference manual (Rev 2.0).</p> <p>The block diagrams in the reference manual sections 11.1.1.2 and 11.1.1.3 would seem to indicate that the DC/DC enable merely allows VDD to get to the LDO without passing through the DC/DC converter. VDD appears to still go to the converter, but the output is a no connect so it doesn&#39;t feed anything else. That may be why you still see 3V on the DCC pin after disabling the converter.</p> <p>I can&#39;t speak to the last portion of your question regarding the S110 specification.</p><div style="clear:both;"></div>