DESCRIPTION

The A7131 is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to 3.0A of output current. The A7131 operates from an input voltage range of 2.5V to 5.5V and provides an output voltage from 0.6V to VIN-0.3V, making the device A7131 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 A7131 an ideal green replacement for large power consuming linear regulators. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improves design reliability. The A7131 is available in PSOP8 package.

FEATURES

 High Efficiency: Up to 95

 Capable of Delivering 3.0A

 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)

 Over Voltage Protection

 Short Circuit Protection

 Thermal shutdown and UVLO

 Available in PSOP8 Package

APPLICATION

 Digital Cameras

 Set top boxes

 Wireless and DSL Modems

 USB supplied Devices in Notebooks

 Portable Devices