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TPS62088: efficiency change over temperature

Yuto Sakai
Mastermind 6100 points
Part Number: TPS62088
Other Parts Discussed in Thread: TPS62821

Hi,

Our customer wants to know about the detail of TPS62088 efficiency.
Is there data showing the efficiency fluctuation when the temperature fluctuates?
If not, is it possible to measure it?

The conditions are as follows.
Vin = 3.3 V, Vout = 1.8 V, Iout = 500 mA, I want data in over temperature range.

Best Regards,
Yuto Sakai

  • 0
    TI__Guru**** 151530 points
    Hi Sakai-san,

    If efficiency is the goal, then the lower frequency TPS62821 may be a better, though larger, choice.

    As well, the efficiency strongly depends on the inductor used. There is more variation from this component than from temperature.

    At 25 C, we have about 92.5%. This increases to 93% at -40C and decreases to 91% at 125 C.