https://devzone.nordicsemi.com/f/nordic-q-a/64857/nrf52840-configuration-4-vdd-layoutHi All, I am currently in the process of designing the PAB layout for my design. My schematic follows the reference design 4 recommended by Nordic. In this VDD_HV (From Battery) is connected to VDDH(Y2) pin of the chip. With this configuration, allen-USTelligent Community 13Tue, 18 Aug 2020 03:20:01 GMThttps://devzone.nordicsemi.com/thread/264970?ContentTypeID=1Tue, 18 Aug 2020 03:20:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:364cb782-0a6c-4bb9-84d6-d240accf5e90Radio<p>Thanks Andreas!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/264762?ContentTypeID=1Mon, 17 Aug 2020 08:05:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93069d20-c318-453c-9f3e-964a28011818Andreas<p>Hi,</p> <p>&nbsp;</p> <p>Yes, you should connect all the VDD pins together externally. This is the main supply of the nRF52840, connecting them together is needed to ensure that the nRF52840 has a nice and stable power supply.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>