SLUSCD4B March 2017 – May 2018 TPS543C20
Certain criteria is recommended for TPS543C20 to achieve optimized loop stability, bandwidth and switching jitter performance. As a rule of thumb, the internal ramp voltage should be 2~4 times bigger than the output capacitor ripple(capacitive ripple only). TPS543C20 is defined to be ease-of-use, for most applications, TI recommends ramp resistor to be 187 kΩ to achieve the optimized jitter and loop response. For detailed design procedure, see the WEBENCH® Power Designer.