To determine how much inrush current is caused by the output capacitor, use Equation 1.where

• I_INRUSH = amount of inrush current caused by C_OUT
• C_OUT = capacitance on V_OUT
• t_SS = output voltage soft start time
• V_OUT = final value of the output voltage

With a final output voltage of 5 V, the expected rise time is 1.7 ms. Using the inrush current equation, the inrush current caused by a 100-µF capacitance would be 294 mA, well below the 500-mA target.