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TPS65994AE: Cpp5v value

Kei Kuwahara
Expert 7630 points
Part Number: TPS65994AE
Other Parts Discussed in Thread: TPS65994QFNEVM

Hello team,

My customer has question about the value of Capacitance on PP5V (Cpp5v).

On the datasheet, it says minimum 120uF. However, on the TPS65994QFNEVM user's guide, only 10uF X 2 is connected to PP5V pin to the GND. 

Which value should the customer follow for thier design, datasheet or EVM?

Best Regards,

Kei Kuwahara

  • +1
    TI__Genius 15275 points

    Hi Kei,

    Yes, it should be minimum of 120uF and does not necessarily have to be local cap. J1 is a selector for PP5V and P5V0, where P5V0 is the output of the buck regulator. There is additional cap on P5V0 which meets the 120uF requirement and is sufficient.

    Regards,

    Brandon