SNVAAA2 March   2025 LP87523-Q1 , LP87565-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Design Parameters
  6. 3 Power Design
  7. 4 Sequencing
    1. 4.1 Start-up
    2. 4.2 Shutdown
  8. 5 Schematics
  9. 6 Compatibility with G9V/Q/X
  10. 7 Software Drivers
  11. 8 Recommended External Components
  12. 9 Measurements
  13. 10Summary
  14. 11References

10 Summary

With this presented design with the LP87523-Q1, LP87565-Q1 PMICs, and discrete DC-DCs, meeting power requirements for Semidrive G9H application processor is possible while maintaining good efficiency. The design also demonstrates how to apply LP87324-Q1 PMIC to meet the power requirements for Semidrive G9H safety. 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.