https://devzone.nordicsemi.com/f/nordic-q-a/76358/question-regarding-ldo-vs-dcdcHi team, My customer is asking if they can remove L38, L39 and C225 when they change nRF52832-QFAA/ nRF52832-QFAA-G version from DCDC to LDO mode? Any suggestion? Also, when in LDO mode, DCDC is disabled, right? Thanks! Leonen-USTelligent Community 13Tue, 15 Jun 2021 11:58:33 GMThttps://devzone.nordicsemi.com/thread/315376?ContentTypeID=1Tue, 15 Jun 2021 11:58:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d03b0be-eb2d-4b60-92ea-90ac550dbf6frun_ar<p>Hi,</p> <p>Please ask the customer to follow the reference schematic for the LDO: <span><a title="Schematic QFAA and QFAB QFN48 with internal LDO setup" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ref_circuitry.html?cp=4_2_0_52_0#schematic_qfn48_ldo">Schematic QFAA and QFAB QFN48 with internal LDO setup</a></span></p> <p>This means that if they do not use DCDC, they can remove the inductors L38 and L39. But they still need to have the decoupling capacitor on dec4.</p> <p>DCDC is only used if enabled. see <span><a title=" DCDCEN " href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/power.html?cp=4_2_0_17_8_10#register.DCDCEN">DCDCEN</a>.</span></p><div style="clear:both;"></div>