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min/max Cfly value of MAX97220A

Category: Datasheet/Specs
Product Number: MAX97220A

Hi,

Please let me know min/max Cfly value of MAX97220A.  if there is no value could you share output resistance of charge pump?

Best regards

  • I want to know min/max value of Hold Capacitor (C2) also.

  • Hello,

    I think you're asking about the flying cap and hold cap due to this explanation in this section of the datasheet:

    I think there are a couple of ways to interpret this information, but the intent is to make it clear that the capacitors should not be less than 1uF and that there is very little improvement from increasing them larger than 1uF.  It is not intended to be eliciting a design decision over choosing more or less capacitance, but rather it is explaining that both capacitors should be 1uF with low ESR.

    To answer your question directly, we do not have any experimental or simulation data to define a min/max for either of those capacitors.  Or recommended capacitor value is 1uF for the flying cap and 1uF for the hold cap with low ESR.

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