Dual DC-DC Controller for DDR Power with Differential VDDQ Sensing and ±50mA VTT

本文以LTC3876为例，介绍了一种DDR电源解决方案。DualDC/DCControllerforDDRPowerwithDifferentialVDDQSensingand±50mAVTTReferenceDesignNote1026DingLiIntroductionHighEfficiency,4.5Vto14VInput,DualOutputTheLTC3876isacompleteDDRpowersolution,DDRPowerSupplycompatiblewithDDR1,DDR2,DDR3andDDR4lowerFigure1showsaDDR3powersupplythatoperatesvoltagestandards.TheICincludesVDDQandVTTDC/froma4.5Vto14Vinput.Figure2showsefficiencyDCcontrollersandaprecisionlinearVTTreference.curvesfordiscontinuousandforcedcontinuous