较低的工作频率提高ICL7660电压转换效率

摘要：本设计笔记显示了如何通过降低振荡器频率电压转换器的效率提高。振荡器电容添加到20mA的电压转换器的振荡频率降低，提高电压转换效率低的IO值。ICL7660电荷泵的特点。

Maxim>AppNotes>BatteryManagementPower-SupplyCircuitsKeywords:voltageconverter,chargepump,oscillatorfrequency,conversionefficiencyJul09,1998APPLICATIONNOTE10LowerOperatingFrequencyImprovesICL7660Voltage-ConversionEfficiencyAbstract:Thisdesignnoteshowshowtoimprovetheefficiencyofavoltageconverterbyloweringtheoscillatorfrequency.Addinganoscillatorcapacitortoa20mAvoltageconverterlowerstheoscillatorfrequency,improvingvoltageconversionefficiencyforlowervaluesofIO.TheICL7660chargepumpisfeatured.YoucanimprovetheefficiencyofanICL7660voltage-conversioncircuitbyloweringtheoscillatorfrequencyandincreasingtheexternalcapacitorvalues.Thou