带三路输出的LED驱动器支持LCD背光

多输出的LED驱动器，如LT3496，提供了极佳的电流匹配、高效和节省空间。灵活的降压、升压和升-降压工作方式使其极适于多种应用。TripleLEDDriverin4mm×5mmQFNSupportsLCDBacklightsinBuck,BoostorBuck-BoostModesandDelivers3000:1PWMDimmingRatioDesignNote449Hua(Walker)BaiIntroductionIntegratedPMOSDriversImprovePWMDimmingByintegratingthreeindependentLEDdrivers,theLT3496Ratioto3000:1offersahighlyefcient,compactandcost-effectiveAhighPWMdimmingratioiscriticalinmanydisplaysolutiontodrivemultipleLEDstrings.Allthreedriversapplications,especiallyinhighendLCDpanels.Beware,haveindependenton/offandPWMdimmingcontrol,