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TPS54360: TPS54360 Com Pin question

Soo Hyun Lee1
Prodigy 10 points
Part Number: TPS54360

HI

The typical schematic Cout in the tps54360 data sheet is designed for two 47uf capacitors.

Why did you calculate the capacitor value as 58.3uF when calculating the com pin resistance?

  • 0
    TI__Mastermind 23845 points

    Hi, 

    Yes the 2 x 47 uF capacitor has the nominal value of 94 uF. The datasheet mentioned voltage derating and temperature effect that reduced the "actual" capacitance value.  Therefore the effective value is 58.3uF which is above the needed 29.2uF.

    Alternatively, if your design specification is close to the EVM value, you may be able to look at the component used in this EVM


    Thanks

    -Arief