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LM73606-Q1: What situation is supposed in COUT calculation (Equation 28)?

Masatoshi Oguri
Expert 4780 points
Part Number: LM73606-Q1

Hello,

It seems Equation 28 of the datasheet p.30 is to calculate necessary COUT in a situation some undershoot of VOUT is expected.

But not a term in Equation 28 involves transient, but all they are for steady state.

What situation is supposed here?

Thanks.

Oguri (TIJ automotive FAE)

  • 0
    TI__Expert 4100 points
    Hello,
    From datasheet"
    The output capacitor is responsible for filtering the inductor current, and supplying load current during transients.
    Capacitor selection depends on application conditions as well as ripple and transient requirements. Best"

    The equation above should be used to calculate minimum output capacitor needed, and it takes in consideration how much undershoot is allowed on output during transients.
    Hope this helps
    Regards
    Brani