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LM3152MHE-3.3 PDF预览

LM3152MHE-3.3

更新时间： 2024-11-21 05:42:03
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
20页 471K
描述
SIMPLE SWITCHER® CONTROLLER, High Input Voltage Synchronous Step-Down

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中文翻译

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LM3152MHE-3.3 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：HSSOP, TSSOP14,.25Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.75模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE最大输入电压：33 V
最小输入电压：6 V标称输入电压：18 V
JESD-30 代码：R-PDSO-G14长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：14最高工作温度：125 °C
最低工作温度：-40 °C标称输出电压：3.3 V
封装主体材料：PLASTIC/EPOXY封装代码：HSSOP
封装等效代码：TSSOP14,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH峰值回流温度（摄氏度）：225
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：500 kHz温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mm

LM3152MHE-3.3 数据手册

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August 26, 2009  
LM3151/LM3152/LM3153  
SIMPLE SWITCHER® CONTROLLER, High Input Voltage  
Synchronous Step-Down  
General Description  
Features  
The LM3151/2/3 SIMPLE SWITCHER® Controller is an easy  
to use and simplified step down power controller capable of  
providing up to 12A of output current in a typical application.  
Operating with an input voltage range from 6V-42V, the  
LM3151/2/3 features a fixed output voltage of 3.3V, and fea-  
tures switching frequencies of 250 kHz, 500 kHz, and 750  
kHz. The synchronous architecture provides for highly effi-  
cient designs. The LM3151/2/3 controller employs a Constant  
On-Time (COT) architecture with a proprietary Emulated Rip-  
ple Mode (ERM) control that allows for the use of low ESR  
output capacitors, which reduces overall solution size and  
output voltage ripple. The Constant On-Time (COT) regula-  
tion architecture allows for fast transient response and re-  
quires no loop compensation, which reduces external com-  
ponent count and reduces design complexity.  
PowerWise® step-down controller  
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6V to 42V Wide input voltage range  
Fixed output voltage of 3.3V  
Fixed switching frequencies of 250 kHz/500 kHz/750 kHz  
No loop compensation required  
Fully WEBENCH® enabled  
Low external component count  
Constant On-Time control  
Ultra-Fast transient response  
Stable with low ESR capacitors  
Output voltage pre-bias startup  
Valley current limit  
Programmable soft-start  
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Fault protection features such as thermal shutdown, under-  
voltage lockout, over-voltage protection, short-circuit protec-  
tion, current limit, and output voltage pre-bias startup allow for  
a reliable and robust solution.  
The LM3151/2/3 SIMPLE SWITCHER® concept provides for  
an easy to use complete design using a minimum number of  
external components and National’s WEBENCH® online de-  
sign tool. WEBENCH® provides design support for every step  
of the design process and includes features such as external  
component calculation with a new MOSFET selector, electri-  
cal simulation, thermal simulation, and Build-It boards for  
prototyping.  
Typical Applications  
Telecom  
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Networking Equipment  
Routers  
Security Surveillance  
Power Modules  
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Typical Application  
30053201  
SIMPLE SWITCHER® is a registered trademark of National Semiconductor Corporation  
© 2009 National Semiconductor Corporation  
300532  
www.national.com  
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