To minimize inrush current and output voltage overshoot during start-up, the device features a controlled soft start-up. After the device is enabled, the device starts all internal reference and control circuits within the enable delay time, Tdelay. After that, the maximum switch current limit rises monotonically from 0 mA to the current limit. The loop stops switching once VO is reached. This allows a quick output voltage raise for small capacitors at the output. The bigger the output capacitor, the longer it takes to settle Vo. A potential load during start is lengthening the ramp as well. The raise of the current limit allows the smallest inrush current for no-load conditions, as well as the possibility to start into high loads at start-up.