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TPS65150: can Flying Capacitance be set to 0.1uF or 0.47uF? which is better?

Max Han
Intellectual 2260 points
Part Number: TPS65150

Hi

in datasheet, Flying capacitance is chosen to be 0.33uF, but 0.33uF is not easy purchased by my customer.

can it be changed to 0.1uF or 0.47uF?

which is better? 0.1uF or 0.47uF?

Thanks.

  • 0
    TI__Intellectual 2805 points
    Hello Max,

    The flying capacitor value will depend on your requirements, specially the output current. Both 0.1 uF and 0.47 uF could fit. Note that to cover up to 20 mA load, you need minimum a 100 nF flying capacitor for the negative charge pump and 330 nF for the positive charge pump. I would recommend to use for both 0.47 uF and verify performance.

    Best regards,
    Diaara