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LM10853A Low Dropout PosiTIve RegulatorsGeneral DescripTIonThe LM1085 is a series of low dropout posiTIve voltageregulators with a maximum dropout of 1.5V at 3A of loadcurrent. It has the same pin-out as NaTIonal Semiconductor’sindustry standard LM317.The LM1085 is available in an adjustable version, which canset the output voltage with only two external resistors. It isalso available in three fixed voltages: 3.3V, 5.0V and 12.0V.The fixed versions integrate the adjust resistors.The LM1085 circuit includes a zener trimmed bandgap reference,current limiting and thermal shutdown.The LM1085 series is available in TO-220 and TO-263 packages.Refer to the LM1084 for the 5A version, and theLM1086 for the 1.5V version.Featuresn Available in 3.3V, 5.0V, 12V and Adjustable Versionsn Current Limiting and Thermal Protectionn Output Current 3An Line Regulation 0.015% (typical)n Load Regulation 0.1% (typical)Applicationsn High Efficiency Linear Regulatorsn Battery Chargern Post Regulation for Switching Suppliesn Constant Current Regulatorn Microprocessor Supply
