FEATURES

? High Efficiency: Up to 96

? Capable of Delivering 1.2A

? 1.5MHz Switching Frequency

? No External Schottky Diode Needed

? Low dropout 100 Duty operation

? Internal Compensation and Soft-Start

? Current Mode control

? 0.6V Reference for Low Output voltages

? Logic Control Shutdown (IQ<1uA)

APPLICATIONS

? Cellular phones

? Digital Cameras

? MP3 and MP4 players

? Set top boxes

? Wireless and DSL Modems

? USB supplied Devices in Notebooks

? Portable Devices

? Thermal shutdown and UVLO

? Available in SOT23-5

DESCRIPTION

The LC3406 is a high-efficiency, DC-to-DC stepdown

switching regulators, capable of delivering up

to 1.2A of output current. The device operates from

an input voltage range of 2.6V to 7.0V and provides

an output voltage from 0.6V to VIN, making the

LC3406 ideal for low voltage power conversions.

Running at a fixed frequency of 1.5MHz allows the

use of small external components, such as ceramic

input and output caps, as well as small inductors,

while still providing low output ripples. This low

noise output along with its excellent efficiency

achieved by the internal synchronous rectifier,

making LC3406 an ideal green replacement for large

power consuming linear regulators. Internal softstart

control circuitry reduces inrush current. Shortcircuit

and thermal-overload protection improves

design reliability.