https://devzone.nordicsemi.com/f/nordic-q-a/8109/nrf52-832-power-questioncurrently, i am designing a wearable device using nrf52 as core soc. i just found that the nrf52 has two internal regulators, ldo and dcdc converter. in my case, the input voltage for nrf52 is 1.8v. so which internal regulator is better?en-USTelligent Community 13Fri, 10 Jul 2015 06:21:47 GMThttps://devzone.nordicsemi.com/thread/29091?ContentTypeID=1Fri, 10 Jul 2015 06:21:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d4bbd421-6327-4ac9-a420-46ab32e0dfe8&#216;yvind Karlsen<p>Hi,</p> <p>See the infocenter on <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk1540453586.html?cp=1_1_0_14#concept">power management</a>.</p> <p>In general the DC/DC converter will be more energy efficient at high current draws, such as the radio going active, and the LDO will be more efficient at low current draws.</p> <p>On the nRF52 you can enable something called refresh mode, this will automatically select which regulator to use to maximize energy efficiency. Note that if you want to use the DC/DC converter you need to add two external passive components.</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>