https://devzone.nordicsemi.com/f/nordic-q-a/58896/nrf52840---power-sources-and-switchesHi everyone, I am looking the schematic of nRF52840 (PCA10056) and I am a bit confused with the Power Sources (sheet 7 of 7). There are three load switches that prioritize the power sources. What I understand so far is that when the 5V boost converteren-USTelligent Community 13Mon, 25 Apr 2022 11:32:54 GMThttps://devzone.nordicsemi.com/thread/364693?ContentTypeID=1Mon, 25 Apr 2022 11:32:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d9cae4c8-4d26-46ed-a1bc-250e7c1bf9d9ketiljo<p><a href="https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/dk/vdd_power_sources.html">https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/dk/vdd_power_sources.html</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/364609?ContentTypeID=1Mon, 25 Apr 2022 07:34:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e212f14-4977-42d3-80c9-b8827843c15axiang san <p>According&nbsp;schematic diagram，<span>VDD comes connects to VSENSE_SW_OUT via SW8 (power swicth).&nbsp;VSENSE_SW_OUT&nbsp;comes form&nbsp;VSUPPLY via U17,but what is the&nbsp;VSUPPLY&nbsp;come from?&nbsp;</span></p> <p><span><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/1650873082_2800_1_2900_.jpg" /></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/239483?ContentTypeID=1Thu, 12 Mar 2020 09:59:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb63e699-4bf2-4b66-bc20-457f892fdaf3ketiljo<p>VDD comes connects to VSENSE_SW_OUT via SW8 (power swicth). Then via U17 to VSUPPLY. What supply you have is selected by U13, U14 and U15.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/238897?ContentTypeID=1Mon, 09 Mar 2020 15:33:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5a0be716-d1cd-456b-8a02-20eaf2f6aaa1Nikosant03<p>Hi, I have already checked the documentation but this actually does not answer my questions... Could you please be more specific?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/238886?ContentTypeID=1Mon, 09 Mar 2020 15:14:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e48e71b9-aac7-40c7-8947-7ce036fd2719ketiljo<p>You&#39;ll find a description of the power supply in the DK&#39;s user guide: <a href="https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/nrf52840_DK/hw_power_supply.html?cp=4_0_4_7_2">https://infocenter.nordicsemi.com/topic/ug_nrf52840_dk/UG/nrf52840_DK/hw_power_supply.html</a></p><div style="clear:both;"></div>