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TPS51220: Asking for TPS51220 design review and suggestions

SHH
Mastermind 30301 points
Part Number: TPS51220

Hi Team,

Customer would like to design TPS51220.


Would you please help review  power on inrush current which is higher than OCP?

would you please evaluate this rush current and provide comment for risk? Thanks for help!

case:

Vin=24V

Vout 12V

 

Here is the power up Vin, Vout and Iout waveform.

 

 

Here is power off waveform.

 

 

schematic

https://txn.box.com/s/afx9oi15ptj96epjl1a39tun0mgmkpq9

pass:”ti”

 

Thanks for help!

 

SHH

  • 0
    TI__Expert 4360 points

    Hi SHH

    Could you confirm with the customer what the test condition is and if the OCP settings are correct? The Isat of inductor(PL1) marked on schematic looks small, only 17~21A, while Idc has already reached 17A, please help check with the customer if the inductor spec is correct.