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Graduate II
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

    This topic has been closed for replies.
    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

    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

     

    Technical Moderator
    July 14, 2025

    Hello,

    You can inspire from the Nucleo board schematic:

    LDO config:

    mALLEm_2-1752496900390.png

    mALLEm_1-1752496852071.png

     

     

    RonilAuthor
    Graduate II
    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.

    mƎALLEmAnswer
    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.