SLVAER0B August   2020  – December 2020 TPS55288 , TPS55288-Q1 , TPS552882 , TPS552882-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2TPS55288 Layout Guide Line
    1. 2.1 Identification of the Critical Switching Loops
    2. 2.2 Power Component Placement
    3. 2.3 Driver Circuit and Signal Circuit Routing
    4. 2.4 Power and GND Plane Design
  4. 3Summary
  5. 4References
  6. 5Revision History

3 Summary

This application note describes how to route the TPS55288 buck-boost converter with a 4-layer printed circuit board. It begins with the identification of the critical switching loops. By proper power component placement, keeping critical loops small, placing a whole layer GND copper plane under the switching- loops, and carefully routing the sensitive traces, you can achieve a success buck-boost converter design.