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You did not provide any information that you did the tinyiest effort on your own. Please do

I did a quick internet search. About every semiconductor manufacturer provides such application notes.

Usually they are all good, I expect them to give similar results.

and thousands of other hits.

Also using simple capacitor equations (wikipedia and many many other sources) and Ohm´s law gives ripple values. No rocket science.

Additionally there are free circuit simulators .. and I´m sure semiconductor manufacturers will provide dedicated SMPS simulation tools.

Klaus