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Tomas Hamouz
Tomas Hamouz
Associate III
March 27, 2024
Solved

Switch off VREFBUF on STM32U5

  • March 27, 2024
  • 1 reply
  • 794 views

Is it possible to switch  VREFBUF clock off after configuration for power save? So the clock is off and the buffer is providing Vref.

In DS there is no mention about it (e.g OPAMP has this note).

    This topic has been closed for replies.
    Best answer by MGAGE.1

    Hello @Tomas Hamouz, 

    Yes, it's possible to switch off the clock of VREFBUF for power save. 

    Once the VREFBUF is configured and stabilized, the clock can be disabled, while the buffer continues to provide the reference voltage.

    If you need to reconfigure VREFBUF, you will need to re-enable the clock, make the changes, wait for stabilization, and then disable the clock.

    Thank you for your message, 

    Best regards.

     

     

    1 reply

    MGAGE.1
    MGAGE.1Best answer
    ST Employee
    April 11, 2024

    Hello @Tomas Hamouz, 

    Yes, it's possible to switch off the clock of VREFBUF for power save. 

    Once the VREFBUF is configured and stabilized, the clock can be disabled, while the buffer continues to provide the reference voltage.

    If you need to reconfigure VREFBUF, you will need to re-enable the clock, make the changes, wait for stabilization, and then disable the clock.

    Thank you for your message, 

    Best regards.

     

     

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