The AOZ29303QI from Alpha & Omega Semiconductor is a Non-Isolated DC-DC Converter that steps down from an input voltage of 4.5-30 V to a DC output voltage of 0.8-5.5 V. It has a programmable switching frequency from 200 kHz to 1 MHz and has an efficiency of up to 93%. This converter provides an output current of 3 A. It allows configurable options using a few external components and allows the user to optimize the module for a wide variety of transient response requirements and output capacitance. This RoHS-compliant converter incorporates cycle-by-cycle over-current protection, short-circuit protection, over-voltage protection, and over-temperature protection circuitries to prevent over-load-related damages in the circuit. It is available in a surface-mount package that measures 9 x 6 x 3.7 mm and is ideal for use in industrial and commercial low power systems, aftermarket auto accessories, networking datacom equipment, and high voltage battery applications.