SLVAFU5 July   2024 LP87521-Q1 , LP87562-Q1 , LP87563-Q1 , TPS62811-Q1 , TPS745-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Design Parameters
  6. 3 Power Design
  7. 4 Sequencing
    1. 4.1 Startup
    2. 4.2 Shutdown
  8. 5 Schematic
  9. 6 Compatibility with X9HP
  10. 7 Software Drivers
  11. 8 Recommended External Components
  12. 9 Summary
  13. 10References

9 Summary

With this presented design with the LP87563-Q1, LP87562-Q1 and LP87521-Q1 PMICs + discrete LDOs and Bucks, there is a possibility to meet power requirements for Semidrive X9SP application processor while maintaining good efficiency. The power supply design for Semidirve X9HP is compatible with this system design and the AP power supply are pin-to-pin interchangeable. Sequencing is handled in PMICs and only one EN signal is needed from the controller. The design is compact due to minimum number of external components. I2C control allows diagnostic and PMIC control if needed.