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Hi all, i am using a STM32 Nucleo-144 developement board with the STM32F429ZI MCU and i am powering it with a 5V Battery. In the Datasheet it says that Pin7 is a 3.3V output. Can i use this Pin to power a Sensor?

SMint.2
Associate II
4 REPLIES 4
Javier1
Principal

That pin seems like the one connected to the NUCLEO board 3v3 regulator´s output.

How much current requires your sensor?

The nucleo regulator seems to be LD39050PU33R with a max current output of 500ma

we dont need to firmware by ourselves, lets talk
SMint.2
Associate II

According to the datasheet it needs 30 mA

Go for it

0693W00000BZp2lQAD.png

we dont need to firmware by ourselves, lets talk
SMint.2
Associate II

Cheers for the quick response and the meme :face_with_tears_of_joy: