https://devzone.nordicsemi.com/f/nordic-q-a/52970/nrf52840-usb-power-circuitHi Nordic Tech Support Team, my customer will use ISP1807-LR (InsightSIP module with nRF52840 SoC) for a project where he don&#39;t need USB. Question: What is the best solution in this case: a). VBUS not connected and VCC_nRF with 3.3V supplyen-USTelligent Community 13Tue, 08 Oct 2019 06:41:11 GMThttps://devzone.nordicsemi.com/thread/213792?ContentTypeID=1Tue, 08 Oct 2019 06:41:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:38114a93-f511-493b-ba3f-e94a93909716Andreas<p>Hi Johann,</p> <p>&nbsp;</p> <p>Option 1: VBUS not connected, VCC_nRF = 3.3 V (or anything between 1.7V and 3.6 V). Remember to short the VDD pin with the VDDH pin.</p> <p>&nbsp;</p> <p>VBUS does not need to be connected when the USB peripheral is not used. Also the capacitor on DECUSB does not need to be populated.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>