LDO on A-Star 32U4 Micro

Hey there!

Can anyone tell me what is the LDO on this controller and what is it’s quiescent current?

Thank you very much!


Hello, João.

The LDO is an LP2981-type regulator. We do not reveal the exact component since we do not want to commit to a specific regulator and there are some variations among the various manufacturer versions.

The typical quiescent current is a few hundred microamps and can go up to about 1 mA at full load.

- Jeremy

thank you!!