LM63625-Q1: ripple ratio > 40% (53.5%)

Tool/software:

Hi Team,

The datasheet recommend the ripple ratio is setting as 20%-40%. I am wondering if it can set as 50% if we pass the RA test, time domain test and bode plot in worse condition.

Below are articles that I find in E2E. It looks like 40 to 60% is a good balance for this ratio, but it is a just a rule of thumb. The outdated rule of thumb was set to 20 to 40% just so that the rating of output caps and inductor saturation current ratings and etc.

https://e2e.ti.com/support/power-management-group/power-management---internal/f/power-management---internal-forum/1273238/lm51571-q1-designing-inductor-ripple-current-ratio-rr/4824849?tisearch=e2e-sitesearch&keymatch=ripple%25252520ratio%25252520%2525253E%2525252040%25252525#4824849

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1288671/lm5160-q1-ripple-ratio-setting?tisearch=e2e-sitesearch&keymatch=ripple%20ratio%20%3E%2040%25#

Regards,

Roy