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TPS544C25: Need to improve Efficiency

Part Number: TPS544C25

Hello Sir/Mam

We are using part TPS544C25RVFT to generate Vout=1.2V and Iout=6.7A but when we are designing it through Webench , it is showing only 79% efficiency . How can we improve the efficiency?

As in webench when we choose higher efficiency option there is not much difference in design .

So please guide us about how we can improve efficiency .

Current design Attached.

  • Hello,

    There is a few options to improve efficiency:

    • Decreasing the Switching Frequency will improve efficiency
    • Decreasing Inductor DCR
    • Selecting an alternate part that is rated for a lower output current, as TPS544C25 is a 30A part. The attached design is only needing Iout = 6.7A as stated.

    Best,

    Calan