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TPS54202: Efficiency with light load

Part Number: TPS54202

Hi,

Do we have the reference number for efficiency at very light load?  Currently we have test result as below, and the efficiency is very low.  Is it expected result?

  • Vin=14.46V Iin=0.0889mA
  • Vout=3.3V, Iout=0.022mA
  • Pout/Pin=5.64%


Thanks!

Antony