SLUAAA5 June   2021 TPS54218 , TPS628501-Q1 , TPS628502-Q1 , TPS628510 , TPS628511 , TPS628512

 

  1.   Trademarks
  2. 1Introduction
  3. 2Main Sources of Power Losses in Synchronous Buck Converters
  4. 3Design Example
  5. 4Summary
  6. 5References

Summary

As with every power supply design, there are trade-offs to be made, but losing efficiency when using high-switching frequency converters doesn’t necessarily have to be one of them. This application note shows that at higher loads operating at high-switching frequencies can have an efficiency benefit at higher currents, due to the fact that they allow for the use of inductors with a lower inductance and as a result lower DCR.