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FEATURES APPLICATIONS • Three Terminal Adjustable or Fixed Voltages* • High Efficiency Linear Regulators 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V •Post Regulators for Switching Supplies • Output Current of 1A • 5V to 3.3V Linear Regulator • Operates Down to 1V Dropout • Battery Chargers • Line Regulation: 0.2% Max. • Active SCSI Terminators • Load Regulation: 0.4% Max. • Power Management for Notebook • SOT-223, TO-252 and SO-8 package available • Battery Powered Instrumentation GENERAL DESCRIPTION The AMS1117 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 AMS1117 devices are pin compatible with other three.
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