2025-05-06 4:54 AM
Hello, I have seen in the post That many users had a problem with the LDO power supply for STM32H757ZI
I wanted to ask, can you confirm that I have a correct implementation of the power supply for LDO?
2025-05-06 10:16 AM - edited 2025-05-06 10:18 AM
Hello,
1- VLXSMPS must be kept floating. It's already indicated in the post you have referred to.
2- Regarding VCAP3 (from AN4938) :
VCAP3 must be connected to other VCAP pins with only 2x2.2uF: