SD8916A

SD8916A 800mA,2-6V Input,1.5MHz Synchronous Step-Down Converter GENERAL DESCRIPTION The SD8916A is a constant frequency, current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The output voltage can be regulated as low as 0.6V. The SD8916A can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load. The SD8916A is offered in a low profile 5-pin, SOT package, and is available in an adjustable version and fixed output voltage of 1.2V,1.5V, 1.8V,2.5V and 3.3V. FEATURES                High Efficiency: Up to 96% 1.5MHz Constant Frequency Operation 800mA Output Current No Schottky Diode Required 2V to 6V Input Voltage Range Output Voltage as Low as 0.6V PFM Mode for High Efficiency in Light Load 100% Duty Cycle in Dropout Operation Low Quiescent Current: 20μA Slope Compensated Current Mode Control for Excellent Line and Load Transient Response Short Circuit Protection Thermal Fault Protection Inrush Current Limit and Soft Start