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TPS7A90: selection

Part Number: TPS7A90
Other Parts Discussed in Thread: TPS7A91

Hi team,

My customer is using the TPS7A9001 and have 2 different options for SS_CTRL and NR/SS, and they are wondering if one way is better than the other.  They both end up having approximately the same startup time.  Is there a pro and/or con whether they tie SS_CTRL high or low and adjust the NR/SS capacitor accordingly?


SS_CTRL tied high to IN

NR/SS = 0.15uF

my startup time is 1.2ms


SS_CTRL tied low to ground

NR/SS = 0.01uF

my startup time is 1.3ms