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Associate III
July 14, 2025
Solved

LDO Power Supply for STM32H757A

  • July 14, 2025
  • 2 replies
  • 286 views

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!Schematic.png

Best answer by mƎALLEm

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.

2 replies

AScha.3
Super User
July 14, 2025

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.

AScha3_0-1752496015934.png

 

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mƎALLEm
Technical Moderator
July 14, 2025

Hello,

You can inspire from the Nucleo board schematic:

LDO config:

mALLEm_2-1752496900390.png

mALLEm_1-1752496852071.png

 

 

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
RonilAuthor
Associate III
July 14, 2025

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

mƎALLEm
mƎALLEmBest answer
Technical Moderator
July 14, 2025

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.

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."