凌力尔特模拟创新杂志 (JUNE 2009）
TwonewversatileDC/DCcontrollerICs,theLT®3757andLT3758,areoptimizedforboost,flyback,SEPICandinvertingconverterapplications.TheLT3757operatesoveraninputrangeof2.9Vto40V,suitableforap-plicationsfromsingle-celllithium-ionbatteryportableelectronicsuptohighvoltageautomotiveandindustrialpowersupplies.TheLT3758extendstheinputvoltageto100V,providingflexible,highperformanceoperationinhighvoltage,highpowertelecom-municationsequipment.BothICsexhibitlowshutdownquiescentcur-rentof1µA,makingthemanidealfitforbattery-operatedsystems.Bothintegrateahighvoltage,lowdropoutlinear(LDO)regulator.ThankstoanovelFBXpinarchitecture,theLT3757andLT3758canbeconnecteddirectlytoadividerfromeitherthepositiveoutputorthenegativeout-puttoground.Theyalsopackmanypopularfeaturessuchassoft-start,inputundervoltagelockout,adjust-ablefrequencyandsynchronizationinasmall10-leadMSOPpackageora3mm×3mmQFNpackage.
LINEARTECHNOLOGYJUNE2009VOLUMEXIXNUMBER2INTHISISSUE…TwoNewControllersforCOVERARTICLETwoNewControllersforBoost,Boost,Flyback,SEPICandInvertingDC/DCFlyback,SEPICandInvertingDC/DCConvertersAcceptInputsupto100V............................................................1ConvertersAcceptWeiGuLinearintheNews…............................2DESIGNFEATURESChargeLi-Ion
