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LMQ644A2-Q1: Question about Cff

Austin Do
Expert 3285 points
Part Number: LMQ644A2-Q1

Tool/software:

Hello team,

Can you explain why Cff is paralleled with 100kohm? Also, why 150kohm is divided two resistors?

Best Regards,

Austin

  • 0
    TI__Genius 9460 points

    Hi Austin,

    The Cff is placed in parallel with the top feedback resistor (100kOhm) to optimize the transient response.

    The additional 50Ohm is an injection resistor we use to do a bode plot on the board.

    Regards,

    Rahil