SLVAFB4 July   2022 TPS62902-Q1 , TPS62903 , TPS62903-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Inverting Buck – Boost Topology
    1. 1.1 Concept
    2. 1.2 Output Current Calculations
    3. 1.3 VIN and VOUT Range
  4. 2Digital Pin Configurations
    1. 2.1 Enable Pin
    2. 2.2 MODE/S-CONF Pin
    3. 2.3 Power Good Pin
  5. 3Design Considerations
    1. 3.1 Input Capacitor Selection
    2. 3.2 Output Inductor Selection
    3. 3.3 Stability Limits and Output Capacitor Selection
  6. 4Typical Performance and Waveforms
  7. 5Conclusion
  8. 6References

6 References

  1. Texas Instruments, Create an Inverting Power Supply From a Step-Down Regulator application note.
  2. Texas Instruments, TPS62903, 3-V to 17-V, 3A, High Efficiency and Low IQ Buck Converter in 1.5-mm × 2-mm QFN Package, data sheet.
  3. Texas Instruments, TPS62903-Q1 3-V to 18-V, 3-A, Automotive Low IQ Buck Converter with +165°C TJ data sheet.
  4. Texas Instruments, TPS62902, 3-V to 17-V, 2A, High Efficiency and Low IQ Buck Converter in 1.5-mm × 2-mm QFN Package, data sheet.
  5. Texas Instruments, TPS62901, 3-V to 17-V, 1A, High Efficiency and Low IQ Buck Converter in 1.5-mm × 2-mm QFN Package, data sheet.
  6. Texas Instruments, Using the TPS629210-Q1 in an Inverting Buck–Boost Topology application note.
  7. Texas Instruments, Using a Buck Converter in an Inverting Buck-Boost Topology analog design journal.
  8. Texas Instruments, Using the TPS62175 in an Inverting Buck Boost Topology application note.
  9. Texas Instruments, Using the TPS5430 as an Inverting Buck-Boost Converter application note.
  10. Texas Instruments, Using the TPS6215x in an Inverting Buck-Boost Topology application note.
  11. Texas Instruments, Creating an Inverting Power Supply Using a Synchronous Step-Down Regulator application note.
  12. Texas Instruments, Working with Inverting Buck-Boost Converters application note.
  13. Robert W. Erickson: Fundamentals of Power Electronics, Kluwer Academic Publishers, 1997
  14. Texas Instruments, How to Measure the Control Loop of DCS-Control™ Devices application note.
  15. Texas Instruments, Simplifying Stability Checks application note.
  16. Texas Instruments, DCS-Controltm landing page.