DESCRIPTION

   The AT1117 series of adjustable and fixed voltage regulators are designed to provide 1A 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 AT1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surface mount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.

APPLICATIONS

    High Efficiency Linear Regulators

    Post Regulators for Switching Supplies

    5V to 3.3V Linear Regulator

    Battery Chargers

    Active SCSI Terminators

    Power Management for Notebook

    Battery Powered Instrumentation

FEATURES

    Three Terminal Adjustable or Fixed Voltages*

    -1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V

    Output Current of 1A

    Operates Down to 1V Dropout

    Line Regulation: 0.2% Max.

    Load Regulation: 0.4% Max.

    SOT-223, TO-252 and SO-8 package available

ORDERING INFORMATION