https://devzone.nordicsemi.com/f/nordic-q-a/117514/enabling-reg0-dcdc-via-reg-dcdcen0-doesn-t-reduce-current-consumptionHello, I&#39;m using an nRF52840 on a custom board operating in high voltage mode, powered either by a LiPo battery or USB. The design follows configuration 4 from the nRF52840 reference designs. To optimize current consumption, I’ve populated inductorsen-USTelligent Community 13Mon, 23 Dec 2024 18:57:32 GMThttps://devzone.nordicsemi.com/thread/516177?ContentTypeID=1Mon, 23 Dec 2024 18:57:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:14a00d2c-de09-4d2c-addb-a1a70aaf2eeacypamigon<p>Hello,</p> <p>Thanks for your help.</p> <p>Here is the schematic MCU power section :</p> <p><img class="align-right" style="float:right;max-height:525px;max-width:488px;" alt=" " height="525" src="https://i.goopics.net/efdicw.png" width="488" /></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p>Here is the layout (order : F.Cu, In.1, In.2, B.Cu) :</p> <p><img class="align-right" style="float:right;max-height:548px;max-width:518px;" alt=" " height="548" src="https://i.goopics.net/4w3c44.png" width="518" /></p> <p><img class="align-right" style="float:right;max-height:537px;max-width:519px;" alt=" " height="537" src="https://i.goopics.net/iet1p6.png" width="519" /></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p><img class="align-right" style="float:right;max-height:482px;max-width:518px;" alt=" " height="482" src="https://i.goopics.net/oa4jse.png" width="518" /></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p><img class="align-right" style="float:right;max-height:557px;max-width:518px;" alt=" " height="557" src="https://i.goopics.net/4ewt02.png" width="518" /></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p></p> <p>I just noticed that my fivevias on the left side interrupt my ground plane. It&#39;s not ideal, but I don&#39;t think this alone can fully explain what I&#39;m experiencing.</p> <p></p> <p>Kind regards,</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/516174?ContentTypeID=1Mon, 23 Dec 2024 18:27:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:599cb93f-9c52-48ba-b8ae-eff6765f4acd&#216;yvind<p>Hello,&nbsp;</p> <p>Are you able to provide schematics and layout of your design? This way we can see if the layout is correct first.<br /><br />Kind regards,</p> <p>Øyvind</p><div style="clear:both;"></div>