为功率敏感的便携式处理器应用的紧凑式I2C可控的四路同步降压式DC/DC转换器

LTC3562是一款多功能高效四路输出的单片同步降压式整流器，可通过I2C接口控制。四种工作模式开关整流器达到系统所需的效率和噪声要求。该器件可完美适用于锂离子电池供电的手持式处理器应用。通过I2C调整输出电压使其支持Intel的CPUP-和C-节能工作模式，简化了开发和制造容差测试。CompactI2C-ControllableQuadSynchronousStep-DownDC/DCRegulatorforPower-ConsciousPortableProcessorsDesignNote442JimDrewIntroductionThe“TypeB”regulators(R600BandR400B)donotrequireTheLTC3562quadoutputstep-downregulatorisdesignedexternalprogrammingresistorsbecausetheresistorsareformulticorehandheldmicroprocessorapplicationsthatintegratedon-chip.ThevaluesoftheinternalfeedbackoperatefromasingleLi-Ionbattery.Itsfourmonolithic,highresistorsareadjustedthroughtheI2Cport,resultinginefciencybuckregulatorssupportIntel’smobileCP