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LM2676SX-ADJ

更新时间： 2024-11-16 12:18:39
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
35页 1445K
描述
LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

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LM2676SX-ADJ 技术参数

生命周期：Not Recommended零件包装代码：D2PAK
包装说明：TO-263,针数：4
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.1其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 1.2 TO 37V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：40 V
最小输入电压：8 V标称输入电压：12 V
JESD-30 代码：R-PSSO-G7JESD-609代码：e0
长度：10.16 mm湿度敏感等级：3
功能数量：1端子数量：7
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：5.4 A最大输出电压：37 V
最小输出电压：1.23 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-263封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：4.79 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：260 kHz温度等级：AUTOMOTIVE
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：SINGLE
处于峰值回流温度下的最长时间：30宽度：8.64 mm
Base Number Matches：1

LM2676SX-ADJ 数据手册

 浏览型号LM2676SX-ADJ的Datasheet PDF文件第2页浏览型号LM2676SX-ADJ的Datasheet PDF文件第3页浏览型号LM2676SX-ADJ的Datasheet PDF文件第4页浏览型号LM2676SX-ADJ的Datasheet PDF文件第5页浏览型号LM2676SX-ADJ的Datasheet PDF文件第6页浏览型号LM2676SX-ADJ的Datasheet PDF文件第7页 
LM2676  
www.ti.com  
SNVS031J –APRIL 2000–REVISED APRIL 2013  
®
LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator  
Check for Samples: LM2676  
1
FEATURES  
DESCRIPTION  
The LM2676 series of regulators are monolithic  
integrated circuits which provide all of the active  
functions for a step-down (buck) switching regulator  
capable of driving up to 3A loads with excellent line  
and load regulation characteristics. High efficiency  
(>90%) is obtained through the use of a low ON-  
resistance DMOS power switch. The series consists  
of fixed output voltages of 3.3V, 5V and 12V and an  
adjustable output version.  
2
•
Efficiency Up to 94%  
•
Simple and Easy to Design with (Using Off-  
The-Shelf External Components)  
•
•
150 mΩ DMOS Output Switch  
3.3V, 5V and 12V Fixed Output and Adjustable  
(1.2V to 37V) Versions  
•
•
50μA Standby Current When Switched OFF  
±2% Maximum Output Tolerance Over Full  
Line and Load Conditions  
The SIMPLE SWITCHER concept provides for a  
complete design using a minimum number of external  
•
•
•
Wide Input Voltage Range: 8V to 40V  
components.  
A
high fixed frequency oscillator  
(260KHz) allows the use of physically smaller sized  
components. A family of standard inductors for use  
with the LM2676 are available from several  
manufacturers to greatly simplify the design process.  
260 KHz Fixed Frequency Internal Oscillator  
−40 to +125°C Operating Junction Temperature  
Range  
The LM2676 series also has built in thermal  
shutdown, current limiting and an ON/OFF control  
input that can power down the regulator to a low  
50μA quiescent current standby condition. The output  
voltage is ensured to a ±2% tolerance. The clock  
frequency is controlled to within a ±11% tolerance.  
APPLICATIONS  
•
•
•
Simple to Design, High Efficiency (>90%) Step-  
Down Switching Regulators  
Efficient System Pre-Regulator for Linear  
Voltage Regulators  
Battery Chargers  
Typical Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
SIMPLE SWITCHER, Switchers Made Simple are registered trademarks of Texas Instruments.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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LM2676SX-ADJ 替代型号

型号 品牌 替代类型 描述 数据表
LM2676SX-ADJ/NOPB TI

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 LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator
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