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TPS51116: Timing sequence of V5IN, S5, S3, power good and VDDQ

Wendy Wang1
Genius 11320 points
Part Number: TPS51116

Hi team,

Do we have the timing sequence of V5IN, S5, S3, power good and VDDQ?

Besides, do we have the information about the current limit protection?

Thank you for your help!

Best regards,

Wendy

  • +1
    TI__Expert 5965 points

    Hi Wendy,

    The sequence at power on can be:

    V5IN -> S3-> S5 -> VDDQ -> Power Good. 

    The current limit protection clamps the inductor valley current. If the inductor current is higher than the current limit threshold, the next on-pulse will be delayed until the inductor current is lower than the threshold. This way the valley current is limited.

    Regards,

    Weidong