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LM2661MDC

更新时间： 2024-11-23 13:09:19
品牌 Logo 应用领域
德州仪器 - TI 转换器开关
页数 文件大小 规格书
20页 1107K
描述
SWITCHED CAPACITOR CONVERTER, 80kHz SWITCHING FREQ-MAX, UUC, DIE

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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

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LM2660  
www.ti.com  
SNVS135D –SEPTEMBER 1999–REVISED MAY 2013  
LM2660 Switched Capacitor Voltage Converter  
Check for Samples: LM2660  
1
FEATURES  
DESCRIPTION  
The LM2660 CMOS charge-pump voltage converter  
is a versatile unregulated switched capacitor inverter  
or doubler. Operating from a wide 1.5V to 5.5V  
supply voltage, the LM2660 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 provides ideal performance  
for battery-powered systems. LM2660 devices can be  
operated directly in parallel to lower output  
impedance, thus providing more current at a given  
voltage.  
2
•
•
•
•
•
Inverts or Doubles Input Supply Voltage  
Narrow SO-8 and Mini SO-8 Package  
6.5Ω Typical Output Resistance  
88% Typical Conversion Efficiency at 100 mA  
Selectable Oscillator Frequency: 10 kHz/80  
kHz  
•
Optional External Oscillator Input  
APPLICATIONS  
•
•
•
•
•
•
Laptop Computers  
Cellular Phones  
The FC (frequency control) pin selects between a  
nominal 10 kHz or 80 kHz oscillator frequency. The  
oscillator frequency can be lowered by adding an  
external capacitor to the OSC pin. Also, the OSC pin  
may be used to drive the LM2660 with an external  
clock up to 150 kHz. Through these methods, output  
ripple frequency and harmonics may be controlled.  
Medical Instruments  
Operational Amplifier Power Supplies  
Interface Power Supplies  
Handheld Instruments  
Additionally, the LM2660 may be configured to divide  
a positive input voltage precisely in half. In this mode,  
input voltages as high as 11V may be used.  
Basic Application Circuits  
Voltage Inverter  
Positive Voltage Doubler  
Splitting VIN in Half  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1999–2013, Texas Instruments Incorporated  
 
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