LT3479EFE

3A, Full Featured DC-DC Converter with Soft-Start and Inrush Current Protection

DESCRIPTION

The LT®3479 is a current mode, fixed frequency step-up DC/DC converter with an internal 3A, 42V switch. Efficiencies of up to 89% can be achieved in typical applications. It features a programmable soft-start function to limit inductor current during start-up and inrush current protection to protect the LT3479 during shorts and line transients.

FEATURES

Wide Input Voltage Range: 2.5V to 24V

3A, 42V Internal Switch

High Effi ciency Power Conversion: Up to 89%

Soft-Start

Frequency Set by External Resistor: 200kHz to 3.5MHz

Protection Against Input Short Circuits and Hot Plugging

Low VCESAT Switch: 0.3V at 2.5A Typical

Capable of Positive and Negative Outputs

Available in Thermally Enhanced 14-Lead 4mm × 3mm DFN and 16-Lead TSSOP Packages

APPLICATIONS

High Power LED Driver

DSL Modems

Distributed Power