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TPS6286A10: Webench design not matching specs

Kyaw Swa Maung
Prodigy 10 points
Part Number: TPS6286A10

Tool/software:

I am trying to design a 2.5V supply using TPS6286A10 with an input voltage of 3.3V. This should be possible according to TPS6286A specifications [ Vout(max) = Vin, Duty cycle (max) = 100% ]. However Webench is not allowing this. Max output voltage you can get is 2.3V from 3.2V-3.4V input. Is this a model error in Webench?

  • 0
    TI__Prodigy 130 points

    Hi Kyaw, 

    I checked Webench for the given specifications:

    Input voltage: 3.3V

    Output Voltage :2.5V

    Output current: 10A

    I observed that Webench is internally performing certain calculations conservatively, therefore the issue.

    However, this input and output voltage combination is supported by the device, as can be confirmed from the datasheet.

    BR,

    Ashika