TPS62442-Q1: Regarding Rcf at COMP/FSET

Sivaprasad K L

Part Number: TPS62442-Q1

Tool/software:

Hi Expert,
I am also facing similar issue as this thread : -Q1: Regarding Rcf at COMP/FSET - Power management forum - Power management - TI E2E support forums for calculating Rcf in comp setting 1 with SSC enabled. I would like to operate DC regulator near to maximum supported switching frequency considering 20% tolerance of SSC. In this case it is coming to be less than 3.3MHz. What value of Rcf would you recommend to achieve safest maximum supported frequency with SSC enable in comp setting 1?

Thanks,
Sivaprasad

5 months ago

0 Farheen 5 months ago

TI__Mastermind 20630 points

Hello Sivaparsad,

Let me quickly check with the designer and get back to you.

Thanks,

Farheen

0 Sivaprasad K L 5 months ago in reply to Farheen

TI__Intellectual 2860 points

Hi Farheen,
Thank you for your support. Did you get any update from design team?

Thanks,
Sivaprasad

+1 Farheen 5 months ago in reply to Sivaprasad K L

TI__Mastermind 20630 points

Hello Sivaprasad,

Going with 18k is my recommendation also as in other thread, as the max 4MHz limit needs to be maintained so considering max tolerance and SSC 20% fsw variation, 18k is safest option to go with.

Thanks,

Farheen