Power supply transient response

[liuyonggen_1]

power supply transient response

I tested the load transient response of TI's Buck converter, and found that its performance is very good with less than 20mV voltage ripple from the light load to the heavy load.
How could it be designed? loop crossover frequency? are they special techniques for load transient response?

Added after 2 minutes:

IF the loop crossover frequency is about 100KHz, Could the voltage ripple of transient response from light loads to heavy loads be less than 20mV?

 

[liuyonggen_1]

are they special relationship between crossover frequency and the transient response?

 

[dumbfrog]

TI's datasheet should have equations or app notes to teach you how to use TI's switcher

Do you know your load transient?
Maybe your load transient (delta current) is very small.

 

[liuyonggen_1]

I found the transient response in some big companies' datasheet was very good, less than 20mV output voltage ripple,how do they get that ?