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LM2653MTC-ADJ PDF预览

LM2653MTC-ADJ

更新时间: 2024-11-26 00:01:07
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关
页数 文件大小 规格书
14页 248K
描述
1.5A High Efficiency Synchronous Switching Regulator

LM2653MTC-ADJ 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSSOP-16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16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:4 V
标称输入电压:10 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e0长度:5 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:2.6 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP16,.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:1.2 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:345 kHz
技术:CMOS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

LM2653MTC-ADJ 数据手册

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March 2001  
LM2653  
1.5A High Efficiency Synchronous Switching Regulator  
n 1.5V to 5.0V adjustable output voltage  
n 0.1Switch On Resistance  
The LM2653 switching regulator provides high efficient  
n 300 kHz fixed frequency internal oscillator  
General Description  
power conversion over a 100:1 load range (1.5A to 15 mA).  
This feature makes the LM2653 an ideal fit in  
battery-powered applications.  
n 7 µA shutdown current  
n Patented current sensing for current mode control  
n Input undervoltage lockout  
n Output overvoltage shutdown protection  
Synchronous rectification is used to achieve up to 97%  
efficiency. At light loads, the LM2653 enters a low power  
n Output undervoltage shutdown protection  
n Adjustable soft-start  
n Adjustable PGOOD delay  
hysteretic or “sleep” mode to keep the efficiency high. In  
many applications, the efficiency still exceeds 80% at 15 mA  
load. A shutdown pin is available to disable the LM2653 and  
reduce the supply current to 7µA.  
n Current limit and thermal shutdown  
All the power, control, and drive functions are integrated  
within the ICs. The ICs contain patented current sensing  
circuity for current mode control. This feature eliminates the  
external current sensing resistor required by other  
current-mode DC-DC converters.  
Applications  
n Webpad  
n Personal digital assistants (PDAs)  
n Computer peripherals  
n Battery-powered devices  
n Notebook computer video supply  
n Handheld scanners  
The ICs have a 300 kHz fixed frequency internal oscillator.  
The high oscillator frequency allows the use of extremely  
small, low profile components.  
Protection features include thermal shutdown, input under-  
voltage lockout, adjustable soft-start, cycle by cycle current  
limit, output overvoltage and undervoltage protections.  
n GXM I/O and core voltage  
n High efficiency 5V conversion  
Features  
n Efficiency up to 97%  
n 4V to 14V input voltage range  
Typical Application  
Efficiency vs Load Current  
(VIN = 5V, VOUT = 3.3V)  
10104930  
10104902  
© 2001 National Semiconductor Corporation  
DS101049  
www.national.com  

LM2653MTC-ADJ 替代型号

型号 品牌 替代类型 描述 数据表
LM2653MTCX-ADJ TI

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