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TPS53830: How to adjust the Vout

fusheng Yu
Prodigy 90 points
Part Number: TPS53830

Hi there, 

Can I adjust the Vout, and How to do it ?

Thanks for your attending.

  • 0
    TI__Guru 65750 points

    Hi

    TPS53830 is designed to support DDR5 application and the output voltage is fixed.

    Could you share why you want to change the output voltage? what's your application? do you have NDA with TI to access the data sheet?

    Regards

    Yihe

  • 0
    Prodigy 90 points

    Hi yihe

    Thanks! Our Application is the DDR5. 

    adjust the VDD,VDDQ reason that is to rise the DDR5 performance.

    but Im not sure the IC can adjust the voltage or not.

  • 0 in reply to fusheng Yu
    TI__Guru 65750 points

    HI

    what you do may violate the DDR5 JEDEC Spec.

    The voltage of the PMIC can be adjust in two ways:

    1. on the fly adjustment, this need be done on every power up before issuing the VR_ENABLE command. 

    2. you need know the DIMM VENDOR passcode to program the voltage and burn it.

    You need have NDA with TI to access data sheet,

    but if you are member of JEDEC, you can also access those registers on JEDEC spec.

    Regards

    Yihe