LM5161-Q1: Output Capacitor Selection and Input Capacitor Selection

Hello,

Please i need your support

I have 2 questions.

1. Question:

8.2.1.2.5 Output Capacitor Selection:
they have ripple voltage ΔVO = 10 mV, how do you get there?

for my application which value should I take?

2. Question:

8.2.1.2.8          Input Capacitor Selection

they have worst case input ripple of ∆V_{IN, ripple}.= 0.5V, and D = 0.5

how do you get there?

for my application which value should I take ∆V_{IN, ripple} and D?

my application:

Vin,max=60V

Iout,max=0.5

Vout= 15 V

Thanks for your Support