Adafruit SAMD51

[The_Oracle_22]

This is a technical question.
Within my team
(at school) we came across the Feather M4 Can Express.
https://www.adafruit.com/product/4759.
We looked around and found your open
source schematics, thanks!
We have to explain the circuit among some other things but I wanted to know why you use a Inductor
on the VDDCORE pin and is it necessary? Looking at the datasheet, there are several ways
of making the chip run, by why 10uH? In addition, what other specifications
are there to the inductor, like resistance. Would it be possible for you to
provide me with the datasheet or similar please?

[adafruit_support_mike]

See section 54.10.1.1 in the datasheet: page 1794:

https://cdn-learn.adafruit.com/assets/a ... 01507F.pdf

[The_Oracle_22]

Okie! Thank you. In addition, if I were to replicate the circuit on my own project, would I use the switching mode like that or ignore it. I want to follow the pinouts and everything (literally to the schematic level) but would I need it. I can't find anything on Mouser like that. Could you provide me with a link to the one that you use, if that is possible?

[adafruit_support_mike]

If you want to duplicate the circuit, then yes.. use the switching regulator option. I can't cite specific parts of the bootloader, but the setup code probably configures the system to use it. See section 19 of the datasheet, which talks about the SAMD51's power supply controller.

[The_Oracle_22]

Ah. Thanks.