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LM2717MT PDF预览

LM2717MT

更新时间: 2024-10-26 22:51:55
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
12页 672K
描述
Dual Step-down DC/DC Converter

LM2717MT 技术参数

是否Rohs认证:不符合生命周期:Transferred
包装说明:TSSOP-24Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.15Is Samacsys:N
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:20 V
最小输入电压:4 V标称输入电压:5 V
JESD-30 代码:R-PDSO-G24JESD-609代码:e0
长度:7.8 mm湿度敏感等级:1
功能数量:2端子数量:24
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:3.2 A封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP24,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN 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:1.1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:600 kHz温度等级:AUTOMOTIVE
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:4.4 mm
Base Number Matches:1

LM2717MT 数据手册

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PRELIMINARY  
May 2005  
LM2717  
Dual Step-down DC/DC Converter  
General Description  
Features  
n Fixed 3.3V output buck converter with a 2.2A, 0.16,  
internal switch  
The LM2717 is composed of two PWM DC/DC buck (step-  
down) converters. The first converter is used to generate a  
fixed output voltage of 3.3V. The second converter is used to  
generate an adjustable output voltage. Both converters fea-  
ture low RDSON (0.16) internal switches for maximum effi-  
ciency. Operating frequency can be adjusted anywhere be-  
tween 300kHz and 600kHz allowing the use of small external  
components. External soft-start pins for each enables the  
user to tailor the soft-start times to a specific application.  
Each converter may also be shut down independently with  
its own shutdown pin. The LM2717 is available in a low  
profile 24-lead TSSOP package ensuring a low profile over-  
all solution.  
n Adjustable buck converter with a 3.2A, 0.16, internal  
switch  
n Operating input voltage range of 4V to 20V  
n Input undervoltage protection  
n 300kHz to 600kHz pin adjustable operating frequency  
n Over temperature protection  
n Small 24-Lead TSSOP package  
Applications  
n TFT-LCD Displays  
n Handheld Devices  
n Portable Applications  
n Laptop Computers  
Typical Application Circuit  
20078501  
© 2005 National Semiconductor Corporation  
DS200785  
www.national.com  

LM2717MT 替代型号

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