https://devzone.nordicsemi.com/f/nordic-q-a/80410/npm1100-and-nrf9160Hi! The nPM1100 is advertised specifically as a complementary product to the nRF52 and nRF53 product line. Seeing how the nRF9160 can also operate at 3V, I was wondering why it is not advertised as complementary with that series too?en-USTelligent Community 13Thu, 07 Oct 2021 15:21:02 GMThttps://devzone.nordicsemi.com/thread/333106?ContentTypeID=1Thu, 07 Oct 2021 15:21:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8e6bf360-a388-44f1-a2d1-5726e2f50fc4Kazi Afroza Sultana<p><a title="nPM1100 Product Specification" href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_npm1100%2Fchapters%2Fhw_layout%2Fref_circuitry%2Fdoc%2Ffrontpage.html&amp;anchor=ref_circuitry_frontpage"></a>Hi Ivan,</p> <p>The<a href="https://infocenter.nordicsemi.com/topic/ps_npm1100/chapters/hw_layout/ref_circuitry/doc/frontpage.html?cp=6_0_0_7_2#ref_circuitry_frontpage"> nPm1100</a> is 400 mA linear battery charger (Adjustable charge current from 20 mA to 400 mA).&nbsp;Another feature of nPm1100 is- 1.8 V to 3.0V, 150mA step-down buck regulator.&nbsp;</p> <p>But&nbsp; the nRF9160 requires up to 500mA to operate. It can not be powered from the regulated rail. So, this 150mA is not enough for charging the&nbsp;nRF9160.</p> <p>In this devzone case&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/66557/nrf9160-current-consumption-continuous-and-peak-during-network-discovery">NRF9160 current consumption continuous and peak during network discovery - Nordic Q&amp;A - Nordic DevZone - Nordic DevZone (nordicsemi.com)</a>, you can find more information about current consumption.</p> <p>Hope it helps.</p> <p>Best Regards,</p> <p>Kazi Afroza Sultana</p><div style="clear:both;"></div>