STM32H755IIK6 VCAP capacitors placement

mosamasa · ‎2026-02-11

Hi,

I'm designing the board for STM32H755IIK6. My power supply plan is SMPS + LDO, since I want to use 480MHz speed.

I wonder if there are better recommendations about 2.2uF VCAP placement. There are three VCAP pins, but two 2.2uF capacitors are instructed to use in reference design. On the other hand, capacitors should be placed near VCAP pins. So how to place two capacitors near three pins A4, A14 and R13? It looks like MB1520 does not have capacitor near A14. Is that correct implementation?

mƎALLEm · ‎2026-02-11

Hello,

The idea is to place these capacitors as close as possible to the VCAP pins. Try to copy the same placement of that MB1520 (STM32H735G-DK board).

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mƎALLEm · ‎2026-02-11

Hello,

The idea is to place these capacitors as close as possible to the VCAP pins. Try to copy the same placement of that MB1520 (STM32H735G-DK board).

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.