Solved: Re: Hello all, I have a question because this is n... - STMicroelectronics Community

at the datasheet:

LDO only - can work with VOS0

SMPS directly cant work with VOS0.

SMPS on and supplies only the LDO - ?

1 ACCEPTED SOLUTION

Accepted Solutions

Hello @IGAL TALOR ,

For STM32H755xxx3 sales types (industrial temperature range) the voltage regulator output can be set only to VOS2 or VOS3 in Run mode.

The different hardware configurations for power supply is mentioned in DS12919 figure 16: Direct SMPS supply and External SMPS supply, LDO supplied by SMPS.

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Kaouthar

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the schematic:

Hello @IGAL TALOR ,

For STM32H755xxx3 sales types (industrial temperature range) the voltage regulator output can be set only to VOS2 or VOS3 in Run mode.

The different hardware configurations for power supply is mentioned in DS12919 figure 16: Direct SMPS supply and External SMPS supply, LDO supplied by SMPS.

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Kaouthar

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.