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TPS74801: CAP of TPS74801 Vbias is lower than 1uF

kevin chang82
Prodigy 220 points
Part Number: TPS74801

Dears

The minimum CPA for Vbias is 1uF in SPEC of TPS74801.

However,the CAP in our design is 0.1uF for Vbias pin.

is there any concern for Cbias 0.1uF?

The attached file is the ripple of Vbias.

Please help to feedback.

ThanksTPS74801.xlsx

s.

  • 0
    TI__Guru 55940 points

    Hi Kevin,

    TPS74801 is designed, tested, and characterized for operation with a minimum Bias capacitor of 0.1 uF.  As such, you are within our Recommended Operating Conditions.

    A 1 uF capacitor is recommend on Bias in order to provide additional stability to the rail for optimal performance.

    Very Respectfully,

    Ryan