Current draw while holding a HIGH GPIO output while in System ON sleep mode to control pin of load switch IChttps://devzone.nordicsemi.com/f/nordic-q-a/60968/current-draw-while-holding-a-high-gpio-output-while-in-system-on-sleep-mode-to-control-pin-of-load-switch-icHello, I am building a power switch for my application and have some questions about expected behavior when holding a GPIO output signal at HIGH during System ON sleep mode. Briefly, I want to use the TCK106AG load switch IC ( TCK106AG ) with a tactileen-USTelligent Community 13Tue, 05 May 2020 10:26:12 GMTRE: Current draw while holding a HIGH GPIO output while in System ON sleep mode to control pin of load switch IChttps://devzone.nordicsemi.com/thread/248134?ContentTypeID=1Tue, 05 May 2020 10:26:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6e2a82ff-6bc1-473b-82c1-f8235891b863Jared<p>Hi Noah,</p> <p>Interesting project that you&#39;re working on. Unfortunately, the short but boring answer is that you would have to measure and see as I could only speculate as how much current the control pin would draw. This is also not specified in the datasheet of the switch.&nbsp;&nbsp;</p> [quote user=""]However, if GPIO state is held HIGH then you&#39;d have 3.3V = (current) * (resistance) and you&#39;d definitely have at least some current draw.[/quote] <p>&nbsp;Yes, I would expect some current to be drawn by the control pin from the nRF.&nbsp;</p> <p>Note that the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52810/gpio.html?cp=4_5_0_5_7_2_0#unique_1679477596">GPIOs have a current limit.</a></p> <p>regards</p> <p>Jared</p><div style="clear:both;"></div>