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LM2676S-12 PDF预览

LM2676S-12

更新时间： 2024-11-22 22:22:15
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
25页 451K
描述
SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

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LM2676S-12 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TO-263, 7 PINReach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11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：15 V
标称输入电压：24 VJESD-30 代码：R-PSSO-G7
JESD-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
封装主体材料：PLASTIC/EPOXY封装代码：TO-263
封装等效代码：SMSIP7H,.55,50TB封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：4.89 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：280 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 mmBase Number Matches：1

LM2676S-12 数据手册

 浏览型号LM2676S-12的Datasheet PDF文件第2页浏览型号LM2676S-12的Datasheet PDF文件第3页浏览型号LM2676S-12的Datasheet PDF文件第4页浏览型号LM2676S-12的Datasheet PDF文件第5页浏览型号LM2676S-12的Datasheet PDF文件第6页浏览型号LM2676S-12的Datasheet PDF文件第7页 
October 2003  
LM2676  
SIMPLE SWITCHER® High Efficiency 3A Step-Down  
Voltage Regulator  
General Description  
Features  
n Efficiency up to 94%  
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.  
n Simple and easy to design with (using off-the-shelf  
external components)  
n 150 mΩ DMOS output switch  
n 3.3V, 5V and 12V fixed output and adjustable (1.2V to  
37V ) versions  
n 50µA standby current when switched OFF  
>
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.  
n
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 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.  
n Wide input voltage range: 8V to 40V  
n 260 KHz fixed frequency internal oscillator  
n −40 to +125˚C operating junction temperature range  
Applications  
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 guaranteed to a 2% toler-  
ance. The clock frequency is controlled to within a 11%  
tolerance.  
>
n Simple to design, high efficiency ( 90%) step-down  
switching regulators  
n Efficient system pre-regulator for linear voltage  
regulators  
n Battery chargers  
Typical Application  
10091403  
SIMPLE SWITCHER® is a registered trademark of National Semiconductor Corporation.  
© 2003 National Semiconductor Corporation  
DS100914  
www.national.com  
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LM2676S-5.0 NSC

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