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GENERAL DESCRIPTION

The AMS1085 series of adjustable and fixed voltage regulators are designed to provide 3A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load currents.

On-chip trimming adjusts the reference voltage to 1. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry.

The AMS1085 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package, 3 and 2 lead TO-263 (Plastic DD) and TO-252 (D PAK) package.

FEATURES

? Three Terminal Adjustable or Fixed Voltages

1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V

? Output Current of 3A

? Operates Down to 1V Dropout

? Load Regulation: 0.1

? Line Regulation: 0.015

? TO-220, TO-263 and TO-252 packages available

APPLICATIONS

? High Efficiency Linear Regulators

? Post Regulators for Switching Supplies

? Microprocessor Supply

? Battery Chargers

? Constant Current Regulators

? Notebook/Personal Computer Supplies

? Portable Instrumentation