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LM2717MT-ADJ/NOPB PDF预览

LM2717MT-ADJ/NOPB

更新时间: 2024-10-27 13:09:19
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
12页 672K
描述
IC 3.5 A DUAL SWITCHING CONTROLLER, 720 kHz SWITCHING FREQ-MAX, PDSO24, LEAD FREE, TSSOP-24, Switching Regulator or Controller

LM2717MT-ADJ/NOPB 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:SSOP, TSSOP24,.25Reach Compliance Code: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:DUAL SWITCHING CONTROLLER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:e3
长度:7.8 mm湿度敏感等级:1
功能数量:1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:3.5 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:TSSOP24,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, 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:SINGLE
最大切换频率:720 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)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-ADJ/NOPB 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  

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