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Visitor II
July 13, 2021
Solved

STM32L4A6VGT6P - is the SMPS optional?

  • July 13, 2021
  • 1 reply
  • 669 views

I am in the process of designing a new controller for a product and the only processors that seem available in any quantity are the -P versions. The datasheet isn't clear for these if the SMPS is optional and you can just use the internal LDO, or if you *have* to supply the core voltage separately on these devices.

If we are just losing two I/Os then that's not a problem, if we have to add an external power circuit then it's a different matter.

The datasheet seems to suggest it is the former, but I'd prefer some clarfication on this so I don't design a dud board without realising!

Thanks.

    This topic has been closed for replies.
    Best answer by TDK

    You can still use the LDO on this chip, you just lose some pins due to the SMPS capability.

    1 reply

    TDKAnswer
    Super User
    July 13, 2021

    You can still use the LDO on this chip, you just lose some pins due to the SMPS capability.

    SHugh.2Author
    Visitor II
    July 13, 2021

    Thanks, that's what I was hoping.