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TPS629203: About recommended value of the capacitor

Part Number: TPS629203

Hi team,

My customer noticed that the recommended range of the output capacitor and capacitor selected in 9.2.2.3.1 does not match.

4.7uF is "recommended".

Which is true? is it a typo?

Thanks,

Luke

  • Hi Luke,

    Actually the LC table selection depends on the application parameters and requirements of customer, such as Vin, Vout, Frequency, output ripple, transient response, etc.

    This is not a typo. As you can see, the 4.7uF capacitor only pairs large inductor. The loop is stable under this condition, but in the meanwhile the output ripple and transient response would not be influenced.

    Typically we recommend to use 2.2uH inductor and 22uF capacitor for most applications.