1 Introduction

HSSs are used in many applications to power capacitive loads in parallel with resistive loads. Capacitors are also commonly placed on the output of systems to improve EMI performance, filter voltage transients, and so forth. Depending on the capacitance, significant inrush current can occur; this behavior can also be compared to a short to ground scenario. By setting a current limit using the current limit (CL) pin, this inrush current drawn by the capacitor can be reduced. By using Equation 1, users can predict the amount of inrush the system experiences, which is dependent on the capacitance of the load and the change in voltage over time.