标签: lm3205

LM3205LM3205650mAMiniature,Adjustable,Step-DownDC-DCConverterforRFPowerAmplifiersJanuary2006LM3205650mAMiniature,Adjustable,Step-DownDC-DCConverterforRFPowerAmplifiersGeneralDescriptionTheLM3205isaDC-DCconverteroptimizedforpoweringRFpoweramplifiers(PAs)fromasingleLithium-Ioncell,howevertheymaybeusedinmanyotherapplications.Itstepsdownaninputvoltagefrom2.7Vto5.5Vtoavariableoutputvoltagefrom0.8V(typ.)to3.6V(typ.).OutputvoltageissetusingaVCONanaloginputforcontrollingpowerlevelsandefficiencyoftheRFPA.TheLM3205offerssuperiorperformanceformobilephonesandsimilarRFPAapplications.Fixed-frequencyPWMoperationminimizesRFinterference.Shutdownfunctionturnsthedeviceoffandreducesbatteryconsump……