SDAA482 September   2026 BQ25756

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Inductor Selection
    1. 2.1 Duty Cycle
    2. 2.2 Inductance Selection
    3. 2.3 Inductor Ripple and Peak Current
    4. 2.4 Using the BQ2575X Design Calculator
  6. 3Inductor Losses
    1. 3.1 Resistance Losses
    2. 3.2 Magnetic Losses
    3. 3.3 General Rules for Inductor Selection
  7. 4Bill of Materials (BOM) Evaluation
  8. 5Summary
  9. 6References

Abstract

Inductor selection is one of the most critical aspects of switching converters. Proper inductor selection can lead to increased efficiency, cooler temperatures, and a smaller converter size. This application note goes over how to calculate inductor losses and how to select the best inductor for your application.