RT8020PQW全新原装现货，***赔十13724201506李生，***：2629331408TheRT8020isadualhigh-efficiencyPulse-Width-Modulated(PWM)step-downDC-DCconverter.Itiscapableofdelivering1Aoutputcurrentoverawideinputvoltagerangefrom2.5Vto5.5V,theRT8020isideallysuitedforportableelectronicdevicesthatarepoweredfrom1-cellLi-ionbatteryorfromotherpowersourceswithintherangesuchascellularphones,PDAsandotherhand-helddevices.Twooperationalmodesare***ailable:PWM/Low-Dropoutauto-switchandshutdownmodes.Internalsynchronousrectifierwithlow***(ON)dramaticallyreducesconductionlossatPWMmode.NoexternalSchottkydiodeisrequiredinpracticalapplication.TheRT8020entersLow-DropoutmodewhennormalPWMcannotprovideregulatedoutputvoltagebycontinuouslyturningontheupperPMOS.TheRT8020entershutdownmodeandc***umeslessthan0.1μAwhenENpinispulledlow.Theswitchingrippleiseasily***oothed-outby***allpackagefilteringelementsduetoafixedoperationfrequencyof1.5MHz.Thisalongwith***allWDFN-12L3x3packageprovides***allPCBareaapplication.Otherfeaturesincludesoftstart,lowerinternalreferencevoltagewith2%accuracy,overtemperatureprotection,andovercurrentprotection.TopOrderingInfo)