标签: ltc3446

LTC3446封装了一个高效1A升压整流器和两个300mAVLDO整流器，输出电压范围VLDO最低可至0.4V，而升压整流器可低至0.8V。输入电压囊括了单节锂离子电池电压，最大可至5.5V，使其成为多电压、2V以下输出的理想解决方案。OneICGeneratesThreeSub-2VPowerRailsfromaLi-IonCellDesignNote419FrankLeeIntroductionplications,andforpoweringlowvoltagelogicfrom5VShrinkinggeometriesinICtechnologyhavepushedtheor3.3Vrails.Theoutputvoltagerangeextendsdownoperatingvoltagesoftoday’selectronicswellbelow2V,to0.4VfortheVLDOregulatorsand0.8Vforthebuckpresentinganumberofdesignchallenges.Onecommonconverter.problemistheneedformultiplesupplyvoltages:forEachoutputisindependentlyenabledorshutdownviaexample,onevoltageforaCPUcore,anotherforI/Oand……

IC工艺几何尺寸的日益缩小促使当今电子产品的工作电压降至远远低于2V的水平，ITC3446解决方案可由单颗IC芯片提供3种电压，实现了电源集成和空间缩小。……