SLVAE69 July   2019 TPS568215 , TPS56C215

1.   Expand Buck Converter Minimum Input Voltage with External VCC Bias
   1.     Trademarks
   2. 1 TPS56C215 Introduction
   3. 2 12 V / 5 V O-ring supply for DDR application
   4. 3 Schematic and Bench Results
      1. 3.1 Efficiency Comparison
      2. 3.2 Bench Waveforms
   5. 4 Conclusion
   6. 5 References