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LM2676T-12 PDF预览

LM2676T-12

更新时间: 2024-11-15 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

LM2676T-12 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TO-220, 7 PINReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:8.07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-PZFM-T7
JESD-609代码:e0湿度敏感等级:1
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-220封装等效代码:ZIP7H,.16,.7TB
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):260认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:NO
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:THROUGH-HOLE端子节距:1.27 mm
端子位置:ZIG-ZAG处于峰值回流温度下的最长时间:40

LM2676T-12 数据手册

 浏览型号LM2676T-12的Datasheet PDF文件第2页浏览型号LM2676T-12的Datasheet PDF文件第3页浏览型号LM2676T-12的Datasheet PDF文件第4页浏览型号LM2676T-12的Datasheet PDF文件第5页浏览型号LM2676T-12的Datasheet PDF文件第6页浏览型号LM2676T-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 mDMOS 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  

LM2676T-12 替代型号

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