SDAA379 June   2026 TPS62912

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2CMOS AVDD requirements
  6. 3TPS62912 Performance and Design Considerations
    1. 3.1 Steady-State Operation Performance
    2. 3.2 Output Voltage Ripple Performance With Long Cable
    3. 3.3 TPS62912 and LDO Performance Comparison in Actual Board Implementation
  7. 4Design Considerations
    1. 4.1 Measurement Spike Mitigation
    2. 4.2 Feedforward Capacitor for Enhanced Loop Response
  8. 5Conclusion
  9. 6Reference

5 Conclusion

The TPS6291X series, utilizing a second-order LC filter and integrated loop compensation, significantly enhances voltage ripple and noise performance. Compared to conventional buck-plus-LDO architectures, the TPS6291X can function as a single buck converter while providing low noise and output voltage ripple characteristics that satisfy load requirements. This approach offers substantial power consumption advantages over LDO-based designs.

During practical testing, measurement artifacts and loop response limitations can cause the TPS62912 to exhibit inferior performance compared to LDOs. These factors must be carefully evaluated and addressed through proper design practices.