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LMR38010-Q1: power loss calculation

Zhenyu Chen
Prodigy 20 points
Part Number: LMR38010-Q1
Other Parts Discussed in Thread: LMR38020-Q1,

regarding the chip LMR38010-Q1/LMR38020-Q1, could you provide me some power loss calculation sheet for the chip?

  • 0
    TI__Mastermind 23460 points

    Hi Zhenyu,

    We don't have a power loss calculation sheet but what you can do is take the efficiency first, and then back calculate the quiescent current (and the resulting power loss) of the chip.

    Iin_device = Iin(measured)- (Vout*Iout_load)/Vin.

    From some prior experiments, I expect around 80-100uA if switching.

    Thanks,

    Richard