https://devzone.nordicsemi.com/f/nordic-q-a/82955/how-to-enable-dc-dc-in-softwareAs I learnt, nRF5232 defaut with LDO mode, DC/DC is diabled, but I can not find any config in nRF5 SDK for nRF52 DK, someone said to use: sd_power_dcdc_mode_set,other said: NRF_POWER-&gt;DCDCEN = 1 I opened ble uart ble prj,but no result to find plsen-USTelligent Community 13Mon, 20 Dec 2021 11:57:10 GMThttps://devzone.nordicsemi.com/thread/344342?ContentTypeID=1Mon, 20 Dec 2021 11:57:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:982b2dbf-094b-40c9-89bb-022cac115351Vidar Berg<p>Hello,</p> <p>You can enable the DCDC regulator by running &quot;NRF_POWER-&gt;DCDCEN = 1&quot; before enabling the Softdevice, or &quot;sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE)&quot; if you want to do it while the Softdevice is enabled.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>