TPS2121: How to reduce Input Settling Time, w/o reducing SS time

Pervaze Humayun1

Part Number: TPS2121

The datasheet claims on Pg.1, the below two as far as startup timing is concerned.

"Adjustable input settling time (SS)"

"Adjustable output soft start time (SS)"

I have achieved the slew rate I need with a 56nF SS cap. The question is, without affecting this, how do I reduce the Input settling time?

0 Shreyas Dmello over 4 years ago

Her Pervaze,

Unfortunately, there is no way to delink settling time from soft start time. Both of these values are directly proportional to the SS cap used.

If you have attained the soft start time you need, the settling time cannot be changed.

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