SLVSBC6C March 2013 – December 2019 TPS84A20
Connecting the STSEL pin to AGND and leaving SS/TR pin open enables the internal SS capacitor with a slow start interval of approximately 1.2 ms. Adding additional capacitance between the SS pin and AGND increases the slow start time. Increasing the slow start time reduces inrush current. Table 7 shows an additional SS capacitor connected to the SS/TR pin and the STSEL pin connected to AGND. See Table 7 for SS capacitor values and timing interval.
|SS Time (msec)||1.2||2.1||2.5||3.8||5.1||7.0||9.8|