升压转换器与LDO的比SEPIC的效率

换器，LDO稳压器提供了更好的电池寿命比传统的SEPIC设计工作时，从一个锂离子电池。MAX1800多声道数码相机电源IC升压加为SEPIC设计的LDO的设计和1MAX668说明了这一点。Maxim>AppNotes>AUTOMOTIVEPOWER-SUPPLYCIRCUITSKeywords:lithium-ion,SEPIC,buck-boost,stepup/down,step-up/step-down,converters,DC-DCconverter,LiDec01,2000+,lithiumbattery,powersupply,MAX1800,MAX668,digitalcamerapowerIC,integratedcircuits,DC-DCboostconvertersAPPLICATIONNOTE471Step-upConverterwithLDOBeatsSEPICEfficiencyAbstract:Astep-upconverterfollowedbyanLDOregulatoroffersbetterbatterylifethanaclassicSEPICdesignwhenoperatingfromonelithium-ioncell.ThisisdemonstratedwiththeMAX1800multi-channeldigitalcamerapowerICforthestep-upplusLDOdesignandaMAX668fortheSEPICdesign.AdditionalInformation:qQuickViewDataSheetfortheMAX668/MAX669qSamplesandLiteratureOrderForm