LDO Power Supply for STM32H757A

Ronil · ‎2025-07-14

Hello everyone,

I've noticed that several users have experienced issues related to the LDO power supply setup for the STM32H757A. I’m currently working on a design using this MCU in LDO mode, and I’d like to confirm whether my power supply implementation is correct. Just to turn On the LED.

Could someone please review my configuration and let me know if there’s anything I should adjust or improve?

Thanks in advance for your help!

AScha.3 · ‎2025-07-14

Hi,

> I should adjust or improve?

1. show complete circuit, not only some parts to guess about the rest

2. check the circuit on the nucleo-H755, to compare.

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mƎALLEm · ‎2025-07-14

Hello,

You can inspire from the Nucleo board schematic:

LDO config:

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Ronil · ‎2025-07-14

Thank you, yes I used it. Only this board has a lot of jumpers and take in mind all differents mode for operation.

mƎALLEm · ‎2025-07-14

So, use it as reference and remove the connections when the solder bridge (SBxx) is marked as DNF and apply the connection when the solder bridge is available.

And already answered that question in this thread.

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