nRF52840: Capacitor recommendation for 3.3 VDD operation

[Chris]

Dear All,

we're using MDBT50Q in our design and they recommend a 10uF cap while Nordic recommends 4.7uF (Reference Circuit 3).

In terms of power consumption, can anyone give a recommendation? Maybe I'm wrong, but a 10uF cap might be too big..

[Simonr]

Hi Chris

I'd assume there is a reason that Raytac recommends using a 10uF cap over the 4.7uF we recommend. I imagine using a 4.7uF would be fine, and consume less power for that matter, but I'd suggest you contact Raytac in order to confirm switching out this cap won't be an issue.

Best regards,

Simon