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TPS62868: Current Sink limit.

Alex Wong
Prodigy 190 points
Part Number: TPS62868

Dear TI experts,

I want to ask if TPS62868 / 62869 design with recommanded 0.22uH inductor, how is the design current sink performance?

Thanks and Best Regard,

Alex.

  • 0
    TI__Guru**** 150950 points

    Hi Alex,

    220nH is the recommended L value for the higher Vout versions of this family.  

    In FPWM mode, the device can sink current.  The cycle by cycle inductor current is limited to the value of the Low-side FET negative current limit (-3A).

    Did that answer your question?

    Thanks,

    Chris