https://devzone.nordicsemi.com/f/nordic-q-a/47868/reg1-dc-dc-decouplingHi, We are running an application using REG1 only in DC/DC mode, REG0 is disabled. I believe we&#39;ve found a small issue with our decoupling of all the power pins, but I&#39;m not sure which pins actually go to what rail so I wanted to check in here. Ouren-USTelligent Community 13Wed, 05 Jun 2019 09:24:56 GMThttps://devzone.nordicsemi.com/thread/191030?ContentTypeID=1Wed, 05 Jun 2019 09:24:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dfe166e9-3368-4642-8cd3-a2f23596069aSimonr<p>Hi Jasen</p> <p>We haven&#39;t characterized the IC with 1nF, so we can&#39;t guarantee that this is OK, but I assume it would work. Anyways, we do recommend using 820pF, as we know for a fact that those work.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/190911?ContentTypeID=1Tue, 04 Jun 2019 19:28:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60d05a99-8df9-4286-845a-dace1248ab18JHiggins<p>Hi Simon,&nbsp;</p> <p>820pF is a bit of an odd value.&nbsp; Is 1nF acceptable?&nbsp; What might be the impact of using 1nF instead of 820pF?</p> <p>Thanks,</p> <p>Jasen</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/189750?ContentTypeID=1Wed, 29 May 2019 05:56:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:adf147d1-d0e8-4fca-973f-1df2f461b56eSimonr<p>Hi Rafael</p> <p>You are correct. DEC5 should have an 820pF decoupling capacitor as well. Additionally, the 10pF on DEC6 should be not connected according to the reference design. You did not mention DEC1 either, this should be 100nF.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>