SLVAF76 August   2021 TPS62901 , TPS62902 , TPS62902-Q1 , TPS62903 , TPS62903-Q1

 

  1.   Trademarks
  2. 1Applications With Limited Area
    1. 1.1 Best TPS62903 Configuration to Reduce Size
    2. 1.2 Design Example
  3. 2Applications With High Efficiency and Thermal Requirement
    1. 2.1 Conduction Losses in the MOSFET
    2. 2.2 Conduction Losses in the Inductor
    3. 2.3 Switching Losses in the MOSFET
    4. 2.4 Losses in the Input and Output Capacitors
    5. 2.5 Analysis and Recommendations
  4. 3Conclusion

1 Applications With Limited Area

Real estate is a luxury in some applications where every inch is needed and utilized. At the same time, power demand increases as more functionalities are added in new designs with higher power requirements. For example, a decade ago smartphones were twice the size as the ones of today and had very limited functionality. More functionalities are added and the performance is dramatically increased with better cameras, more memory, better speed, faster touch screen, better audio, more battery life, faster charging, and so on. Power system designers are left with no other option but to make the best of limited board space with the highest efficiency possible. The TPS62903 gives the designer lots of flexibility to configure it for the smallest application size possible. The following section discusses the possible adjustments needed to achieve that.