SC4626xSKTRT中文資料SEMTECH數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

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