GENERAL DESCRIPTION

The The AMS2905 series of adjustable and fixed voltage regulators are designed to provide 500mA 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 AMS2905 devices are pin compatible with other three-terminal regulators and are offered in the low profile surface mount TO-252(DPAK), SOT-223 and SOT-89 packages.

FEATURES

? Three Terminal Adjustable or Fixed Voltages*

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

? Output Current of 500mA

? Operates Down to 1V Dropout

? Line Regulation: 0.2 Max.

? Load Regulation: 0.4 Max.

? TO-252, SOT-223 and SOT-89 packages

APPLICATIONS

? High Efficiency Linear Regulators

? Post Regulators for Switching Supplies

? 5V to 3.3V Linear Regulator

? Battery Chargers

? Sound Cards

? Power Management for Notebook

? Battery Powered Instrumentation