Other Parts Discussed in Thread: TPS7A30,
What is the tolerance of the soft-start time? I am working on specifications for design verification purposes and I need some reference (even a ballpark) for minimum and maximum. For TPS7A30 too, for that matter. The data sheet only has the formula tss(ms)= 1.4 * C(nF).
Also, what is the criterion for tss? Per graph on figure 20 of data sheet, the waveform is RC like. The graph is for 1.2V output and, based on it, the reference point would be 83.3% of Vout (1V). Is this always true?
In my design, output voltage is 14V for Vin 15.5V, Css = 33nF (so tss=46ms) and total capacitance on the output is around 300uF (distributed around two boards). Load current is of a few mA.