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Original question:

TPS62933: TPS62933 3.3V Shortage Problem

TPS62933: Check the application specs

Jayden Qiu
Intellectual 1405 points
Part Number: TPS62933

Tool/software:

Hi team,

This is FAE jayden, My customer has a question about tps62933.

As you can see in datasheet, the LC table for 12V is below:

can this device support 2.2uH inductor to realize Vin=19V，Vout=12V and Iout=3A？ Many thanks.

Brs

Jayden

  • 0
    TI__Mastermind 27296 points

    Hi Jayden

    TPS62933 fsw can be set between 200kHz to 2.2MHz, it's possible to select a 2.2uH inductor when fsw is >1.5MHzc, But the device becomes very hot due to the high switching loss& conduction loss. It will hit OTP when Io=3A.

    So the answer would be no. You can use the WEBEN tool to help with the design.

    Thanks and bes tregards.