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LM2611AMF PDF预览

LM2611AMF

更新时间: 2024-11-22 23:16:47
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器
页数 文件大小 规格书
13页 360K
描述
1.4MHz Cuk Converter

LM2611AMF 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SOT-23, 5 PINReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.66模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:14 V最小输入电压:2.7 V
标称输入电压:5 VJESD-30 代码:R-PDSO-G5
JESD-609代码:e0长度:2.92 mm
湿度敏感等级:1功能数量:1
端子数量:5最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:2 A
封装主体材料:PLASTIC/EPOXY封装代码:LSSOP
封装等效代码:TSOP5/6,.11,37封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.22 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK-BOOST最大切换频率:1800 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.95 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:1.6 mmBase Number Matches:1

LM2611AMF 数据手册

 浏览型号LM2611AMF的Datasheet PDF文件第2页浏览型号LM2611AMF的Datasheet PDF文件第3页浏览型号LM2611AMF的Datasheet PDF文件第4页浏览型号LM2611AMF的Datasheet PDF文件第5页浏览型号LM2611AMF的Datasheet PDF文件第6页浏览型号LM2611AMF的Datasheet PDF文件第7页 
January 2002  
LM2611  
1.4MHz Cuk Converter  
General Description  
Features  
n 1.4MHz switching frequency  
n Low RDS(ON) DMOS FET  
n 1mVp-p output ripple  
The LM2611 is a current mode, PWM inverting switching  
regulator. Operating from a 2.7 - 14V supply, it is capable of  
producing a regulated negative output voltage of up to  
−(36-VIN(MAX)). The LM2611 utilizes an input and output  
inductor, which enables low voltage ripple and RMS current  
on both the input and the output. With a switching frequency  
of 1.4MHz, the inductors and output capacitor can be physi-  
cally small and low cost. High efficiency is achieved through  
the use of a low RDS(ON) FET.  
n −5V at 300mA from 5V input  
n Better regulation than a charge pump  
n Uses tiny capacitors and inductors  
n Wide input range: 2.7V to 14V  
n Low shutdown current: 1uA  
n 5-lead SOT-23 package  
<
The LM2611 features a shutdown pin, which can be acti-  
vated when the part is not needed to lower the Iq and save  
battery life. A negative feedback (NFB) pin provides a simple  
method of setting the output voltage, using just two resistors.  
Cycle-by-cycle current limiting and internal compensation  
further simplify the use of the LM2611.  
Applications  
n MR Head Bias  
n Digital camera CCD bias  
n LCD bias  
The LM2611 is available is a small SOT23-5 package. It  
comes in two grades:  
n GaAs FET bias  
n Positive to negative conversion  
Grade A  
1.2A  
Grade B  
0.9A  
Current Limit  
RDS(ON)  
0.5  
0.7Ω  
Typical Application Circuit  
20018117  
© 2002 National Semiconductor Corporation  
DS200181  
www.national.com  

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