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LM2661MDC PDF预览

LM2661MDC

更新时间: 2024-11-02 13:09:19
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器开关
页数 文件大小 规格书
12页 299K
描述
IC SWITCHED CAPACITOR CONVERTER, 80 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or Controller

LM2661MDC 技术参数

生命周期:Obsolete包装说明:DIE, DIE OR CHIP
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.73
模拟集成电路 - 其他类型:SWITCHED CAPACITOR CONVERTER最大输入电压:5.5 V
最小输入电压:1.5 V标称输入电压:5 V
JESD-30 代码:X-XUUC-N功能数量:1
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.1 A最大输出电压:11 V
最小输出电压:5 V封装主体材料:UNSPECIFIED
封装代码:DIE封装等效代码:DIE OR CHIP
封装形状:UNSPECIFIED封装形式:UNCASED CHIP
认证状态:Not Qualified子类别:Other Analog ICs
表面贴装:YES切换器配置:DOUBLER INVERTER
最大切换频率:80 kHz技术:CMOS
温度等级:INDUSTRIAL端子形式:NO LEAD
端子位置:UPPERBase Number Matches:1

LM2661MDC 数据手册

 浏览型号LM2661MDC的Datasheet PDF文件第2页浏览型号LM2661MDC的Datasheet PDF文件第3页浏览型号LM2661MDC的Datasheet PDF文件第4页浏览型号LM2661MDC的Datasheet PDF文件第5页浏览型号LM2661MDC的Datasheet PDF文件第6页浏览型号LM2661MDC的Datasheet PDF文件第7页 
September 1999  
LM2660/LM2661  
Switched Capacitor Voltage Converter  
General Description  
Features  
n Inverts or doubles input supply voltage  
n Narrow SO-8 and Mini SO-8 Package  
n 6.5typical output resistance  
The LM2660/LM2661 CMOS charge-pump voltage con-  
verter inverts a positive voltage in the range of 1.5V to 5.5V  
to the corresponding negative voltage. The LM2660/LM2661  
uses two low cost capacitors to provide 100 mA of output  
current without the cost, size, and EMI related to inductor  
based converters. With an operating current of only 120 µA  
and operating efficiency greater than 90% at most loads, the  
LM2660/LM2661 provides ideal performance for battery  
powered systems. The LM2660/LM2661 may also be used  
as a positive voltage doubler.  
n 88% typical conversion efficiency at 100 mA  
n (LM2660) selectable oscillator frequency: 10 kHz/80 kHz  
n (LM2661) low current shutdown mode  
Applications  
n Laptop computers  
n Cellular phones  
The oscillator frequency can be lowered by adding an exter-  
nal capacitor to the OSC pin. Also, the OSC pin may be used  
to drive the LM2660/LM2661 with an external clock. For  
LM2660, a frequency control (FC) pin selects the oscillator  
frequency of 10 kHz or 80 kHz. For LM2661, an external  
shutdown (SD) pin replaces the FC pin. The SD pin can be  
used to disable the device and reduce the quiescent current  
to 0.5 µA. The oscillator frequency for the LM2661 is 80 kHz.  
n Medical instruments  
n Operational amplifier power supplies  
n Interface power supplies  
n Handheld instruments  
Basic Application Circuits  
Voltage Inverter  
Positive Voltage Doubler  
DS012911-3  
DS012911-4  
Splitting VIN in Half  
DS012911-26  
© 1999 National Semiconductor Corporation  
DS012911  
www.national.com  

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