* Wide 4.5V to 42V Input Voltage Range * Adjustable Current Limit using RDS(ON) or a Current Sense Resistor * Programmable Switching Frequency to 1MHz * No Loop Compensation Required * Ultra-Fast Transient Response * Nearly Constant Operating Frequency with Line and Load Variations * Adjustable Output Voltage from 0.9V * Precision ±2% Feedback Reference * Capable of 100% Duty Cycle Operation * Internal Soft-Start Timer * Integrated High Voltage Bias Regulator * Thermal Shutdown