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TPS62872-Q1: Device combination in stacked operation

Isao Takigasaki
Intellectual 2900 points
Part Number: TPS62872-Q1
Other Parts Discussed in Thread: TPS62871-Q1

Hi team,

Based on the following description in the datasheet of TPS6287x-Q1, I understood we can't implement different part number devices in stacked design with TPS6287x-Q1.
Is my understanding correct?

The background of this confirmation is that my customer want to implement stackable architecture with TPS62872-Q1 (12A) and TPS62871-Q1 (9A) to meet the requirement of 20Amax output current with saving the cost of DCDC. 

Best Regards, Taki

  • +1
    TI__Genius 15100 points

    Hi Takigasaki-san,

    Yes, your explanation is correct. Same current limit is needed for stack feature to balance the current distribution. I would sugget to use 2 times TPS62872-Q1 for 20A spec.

    Thanks,

    Tanvee