| PT5107PDF文档下载300mAHighPSRRLDO GENERALDESCRIPTION ThePT5107isalow-dropoutvoltageregulatordesignedforportableandwirelessapplicationsthatrequirehighPSRR,lowquiescentcurrentandexcellentlineandloadtransientresponse.ThePT5107isdesignedtoworkwithsmall1µFinputandoutputceramiccapacitors.Itsquiescentcurrentisaslowas25uA.Withitsbetterthan70dBPSRRat10kHz,thePT5107’sperformanceisidealforbatterypoweredsystemordeliveringlowdropoutvoltageandlowquiescentcurrent.Thedevicecanbeusedformobilephonesandsimilarbatterypoweredwirelessapplications.Itprovidesupto300mA,froma2.0Vto5.5Vinput.ThePT5107consumeslessthan0.1µAinshutdownmode.ThePT5107isavailablein5pinSOT23package.Theoutputstandardsof1.5V,1.8V,2.5V,2.8V,3.0V,and3.3Vareavailable. FEATURES ¨ 2.0Vto5.5Vinputrange¨ 300mAguaranteedoutputcurrent¨ HighPSRR:75dBat1KHz,70dBat10KHz¨ Lowquiescentcurrent:25uA(Typ.)¨ <1uAcurrentatshutdownmode¨ 180mVmaximumlowdropoutvoltagewith100mAload¨ -40°Cto+85°Cjunctiontemperatureforoperation APPLICATIONS ¨ CDMA/GSMmobilephones¨ Cordlesstelephones¨ WLANandbluetoothappliances¨ PDAs/MP3¨ Batterypoweredportabledevices TYPICALAPPLICATIONS
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