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LMR62014: Frequency range for fz

Alexander Van Brunt
Prodigy 10 points
Part Number: LMR62014

On page 10 of the datasheet, it says "The recommended frequency for the zero fz should be approximately 6 kHz."

I'm trying to select Cf and R1 parts with acceptable values and tolerances. But, I need to know what the acceptable ranges for fz are because I cannot guarantee an exact value for both.

  • 0
    TI__Expert 5180 points

    Hi Alex,

    I think the precision requirement of this zero frequency is not very high, it is just used to added a little smaller than bandwidth to increase the converter loop stability. So 6kHz ±1kHz is okay for the design and this value can be optimized based on bench test performance.

    Best Regards,

    Eric Yue