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LP87562-Q1: Could we separate the Vin pin for Buck_x?

Zirui Su
Expert 5340 points
Part Number: LP87562-Q1

Hi team

After checking the LP87562Q1 we would like to ask a question that could we separate the Vin pin like we provide a certain voltage Vin to Vin_B0 and provide the other voltage Vin to Vin_B1/2/3, is it ok for the LP87562Q1 device? If it is ok, how could we configure the VANA pin? I am discussing with customer the reason why they need to split one buck different with others but I would like to know whether it is OK for the LP87562Q1? Or LP87562Q1 could only support the same Vin with all the bucks? Thank you!

  • 0
    TI__Genius 11020 points

    Hi Zirui,

    Unfortunately it is not possible. All buck inputs and VANA must be in the same potential. There is no level shifters inside the device that would make it possible to power bucks with different voltages. All bucks and VANA need the same voltage.

    Thanks.

    Regards,

    Tomi Koskela