SLVAFQ5 December   2023 TPS51383 , TPS51385 , TPS51386

PRODUCTION DATA  

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Zcap Calculation of Hybrid Capacitors
  6. 3Experimental Verification
  7. 4Loop Stability Analysis With Hybrid Output Capacitor Network
  8. 5Application Design Example of D-CAP3 Converter With a Hybrid Output Capacitors Network
  9. 6Summary
  10. 7References

6 Summary

A zero and pole calculation and loop stability method with hybrid capacitor network forD-CAP2™ and D-CAP3™ converters is proposed in this application note. When the ESR of the output capacitor is too large, an additional pair of poles and zeros is introduced and can be pushed into the bandwidth. This method increases the bandwidth and can cause loop instability when the bandwidth is greater than 1/3×fsw.