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LM2705MFX-ADJ PDF预览

LM2705MFX-ADJ

更新时间: 2024-11-15 22:51:55
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
11页 365K
描述
Micropower Step-up DC/DC Converter with 150mA Peak Current Limit

LM2705MFX-ADJ 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:5.28其他特性:ALSO HAS ADJUSTABLE OUTPUTS UPTO 20V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制技术:CONSTANT OFF TIME
最大输入电压:7 V最小输入电压:2.2 V
JESD-30 代码:R-PDSO-G5JESD-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:0.18 A标称输出电压:20.5 V
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:Other Analog ICs表面贴装:YES
切换器配置:BOOST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 mm

LM2705MFX-ADJ 数据手册

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April 2003  
LM2705  
Micropower Step-up DC/DC Converter with 150mA Peak  
Current Limit  
General Description  
Features  
n 150mA, 0.7, internal switch  
n Uses small surface mount components  
n Adjustable output voltage up to 20V  
n 2.2V to 7V input range  
The LM2705 is a micropower step-up DC/DC in a small  
5-lead SOT-23 package. A current limited, fixed off-time  
control scheme conserves operating current resulting in high  
efficiency over a wide range of load conditions. The 21V  
switch allows for output voltages as high as 20V. The low  
400ns off-time permits the use of tiny, low profile inductors  
and capacitors to minimize footprint and cost in space-  
conscious portable applications. The LM2705 is ideal for  
LCD panels requiring low current and high efficiency as well  
as white LED applications for cellular phone back-lighting.  
The LM2705 can drive up to 3 white LEDs from a single  
Li-Ion battery. The low peak inductor current of the LM2705  
makes it ideal for USB applications.  
n Input undervoltage lockout  
n 0.01µA shutdown current  
n Small 5-Lead SOT-23 package  
Applications  
n LCD Bias Supplies  
n White LED Back-Lighting  
n Handheld Devices  
n Digital Cameras  
n Portable Applications  
Typical Application Circuit  
20039701  
FIGURE 1. Typical 20V Application  
© 2003 National Semiconductor Corporation  
DS200397  
www.national.com  

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