Application information

L6738A

28/32

Doc ID 18134 Rev 2

therefore in higher ripple voltages. For these reasons, a mix between electrolytic and MLCC

capacitors is suggested to minimize ripple as well as reduce voltage deviation in dynamic

mode.

10.3

Input capacitors

The input capacitor bank is designed considering mainly the input RMS current that

follows:

input capacitor ESR and, in the worst case, are:

I

rms

I

OUT

D1

D

–

()

⋅

⋅

=

P

ESR

I

OUT

2

⁄

()

2

⋅

=