SLUAA12
March 2020
TPS53681
Selection Considerations for Output Capacitors of Multiphase Voltage Regulators Part 1
Trademarks
1
Introduction
2
Current Transfer Function Gii_CL(s) of Load Current to Inductor Current
3
Output Capacitance Calculation Based on Load Transient
3.1
Steady-state Output Ripple
3.2
Load Step Transient Response
3.2.1
Case 1: Small-signal Transient with Unsaturated Loop
3.2.2
Case 2: Large-signal Transient with Saturated Loop
3.2.3
Criteria for Loop Saturation
4
Analytical Calculations and Experimental Verification
5
Conclusions
6
References
3
Output Capacitance Calculation Based on Load Transient