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TPS65262: Can TPS65262 two - way LDO be used in parallel?

cyan zhou
Expert 1500 points
Part Number: TPS65262

Hi Sir,

      Can TPS65262 two - way LDO be used in parallel?

What should I pay attention to when using parallel?

  • 0
    TI__Genius 15135 points

    Hi, cyan

    Because we cannot assure the equaled current flowing in 2 LDOs, they cannot be used in parallel.

  • 0
    TI__Genius 15135 points

    If the 2 LDOs are used in parallel, when add loading, they will work in below way:

    one of LDOs will not provide any loading, (Marked as 1st LDO) 

    the other LDO will provide whole loading until reach it's OC limit (Marked as 2nd LDO),  then Vout will drop a little, and the 1st LDO will start to provide loading to keep Vout, when both LDO reach OC limit, output will shut down.

    So I said "cannot assure the equaled current flowing in 2 LDOs", this is not good working behavior, so I think they cannot be used in parallel.