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 availableAPPLICATIONS • 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 InstrumentationGENERAL DESCRIPTIONTThhee AMS1117 series of adjustable and fixed voltage regulators are designed to provide up to1A output current and to operatedown to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V, decreasing at lowerload currents.On-chip trimming adjusts the reference voltage to 1.5%. Current limit is set to minimize the stress under overload conditionson both the regulator and power source circuitry.The AMS1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surfacemount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.