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                1/16
                February2003
                s
                PRECISE5,8.5,10,12VOUTPUTS
                s
                LOWDROPOUTVOLTAGE(500mVTyp.at
                1.5A)
                s
                VERYLOWQUIESCENTCURRENT
                s
                THERMALSHUTDOWN
                s
                SHORTCIRCUITPROTECTION
                s
                REVERSEPOLARITYPROTECTION
                DESCRIPTION
                TheL4940seriesofthreeterminalpositive
                regulatorsisavailableinTO-220,TO-220FPand
                D
                2
                PAKpackagesandwithseveralfixedoutput
                voltages,makingitusefulinawiderangeof
                industrialandconsumerapplications.Thanksto
                itsverylowinput/outputvoltagedrop,these
                devicesareparticularlysuitableforbattery
                poweredequipments,reducingconsumptionand
                prolongingbatterylife.Eachtypeemploysinternal
                currentlimiting,antisaturationcircuit,thermal
                shut-downandsafeareaprotection.
                L4940
                SERIES
                VERYLOWDROP1.5AREGULATORS
                BLOCKDIAGRAM
                TO-220
                D
                2
                PAK
                TO-220FP
                9uu