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October 15, 2026

What is the suitable power configuration mode to use with STM32H725REV6 VFQFPN68 wrongly wired in LDO

New question split from this post.

Hi

Thank you for your response. Unfortunately, our PCB is already in the prototype phase and we need to find a solution to power up the board for at least some basic testing.

Then, on STM32H725REV6, are both Direct SMPS and Bypass (external VCORE on VCAP, VDDSMPS tied to VSS, PWR_EXTERNAL_SOURCE_SUPPLY) officially supported supply configurations?

BR

Gilberto

    1 reply

    mƎALLEm
    ST Technical Moderator
    October 15, 2026

    Hello,

    This is another question that needs to be split as the original question ahs been answerd.

    Try the Bypass mode:

    In your previous schematic almost the same structure as the figure above:

    → Still need to supply Vcore over VCAP pins. Hope you can access to VCAP by having test points. 

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