Description
The SC4626 is a high efficiency, synchronous step-down regulator providing up to 1A output current in a SOT23-5 package. The device requires only three external filter components for a complete step-down regulator solution. The input voltage range is 2.9 to 5.5V with either factory programmed outputs from 1.0 to 3.3V or adjustable output via an external resistor divider.

Features
■ VIN Range: 2.9 – 5.5V
■ VOUT Options: 1.0 - 3.3V
■ Up to 1A Output Current
■ 2.5MHz Switching Frequency
■ Efficiency Up to 93%
■ Low Output Noise Across Load Range
■ Excellent Transient Response
■ Start Up into Pre-Bias Output
■ 100% Duty-Cycle Low Dropout Operation
■ <1µA Shutdown Current
■ Internal Soft Start
■ Input Under-Voltage Lockout
■ Output Over-Voltage, Current Limit Protection
■ Over-Temperature Protection
■ Adjustable Output Voltage
■ SOT23-5 Package
■ Fully WEEE and RoHS Compliant

Applications
■ Bluetooth Radios
■ DSC and PMPs
■ GPS Devices
■ xDSL Systems
■ POL Regulators
■ Portable HDD
■ Wireless LAN