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TLV62569A: side effect of changing C3 value

Part Number: TLV62569A

Hi Team,

Could you please advise if there will be any side-effects when C3 applies 33pF?

Thank you!

Thanks,

Patty Chuang

  • Hi Patty Chuang,

    Increasing the feedforward capacitor value pushes the zero and pole frequencies to the origin, which results in an increase in crossover frequency but it can result in the lower phase margin. 

    So I will advise to measure the control loop stability parameters (Phase Margin, Transient stability etc.) with your schematic and load conditions if you are going to use value higher than the recommended value in the datasheet.

    Thanks and Best Regards,

    Farheen

  • Hi Patty,

    I am closing this thread as we are already discussing this by email.

    Thanks and Best Regards,

    Farheen