Hello Community,
I am using the STM32U585 in a design, and I have VDD at 3.3V and VDDIO2 at 1.8V. The 1.8V rail is supplied by a 3.3V to 1.8V voltage regulator. I connected the Enable of this voltage regulator to one of the STM32U585 I/O (this I/O isn't on the PG port, because PG port is supplied by VDDIO2). Do you foresee any problem with this setup? I mean the 3.3V will turn on at first, and then the STM32 will turn on the 1.8V regulator, which supply VDDIO2 rail. In the datasheet it is clear that, VDDIO2 and VDD are two independent supplies. I just want a confirmation, and if someone here has a similar implementation in a working design.
Thank you, Lamia
