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LM2576R

更新时间： 2024-01-17 01:08:12
品牌 Logo 应用领域
韩国泰进 - HTC 稳压器开关
页数 文件大小 规格书
14页 923K
描述
3.0A, 52kHz, Step-Down Switching Regulator

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中文翻译

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LM2576R 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：TO-263,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：7 weeks风险等级：1.58
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23V TO 37V模拟集成电路 - 其他类型：SWITCHING REGULATOR
最大输入电压：40 V最小输入电压：4 V
标称输入电压：12 VJESD-30 代码：R-PSSO-G5
JESD-609代码：e3长度：10.287 mm
湿度敏感等级：1功能数量：1
端子数量：5最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：7.5 A
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
峰值回流温度（摄氏度）：245认证状态：Not Qualified
座面最大高度：4.59 mm表面贴装：YES
切换器配置：BUCK最大切换频率：63 kHz
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn) - annealed
端子形式：GULL WING端子节距：1.7 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：40
宽度：9.144 mmBase Number Matches：1

LM2576R 数据手册

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3.0A, 52kHz, Step-Down Switching Regulator  
LM2576  
FEATURES  
3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions  
Adjustable Version Output Voltage Range, 1.23 to 37V  
+/- 4% AG10Maximum Over Line and Load Conditions  
Guaranteed 3.0A Output Current  
TO-220 PKG  
Wide Input Voltage Range  
Requires Only 4 External Components  
52kHz Fixed Frequency Internal Oscillator  
TTL Shutdown Capability, Low Power Standby Mode  
High Efficiency  
1
5
TO-220V PKG  
Uses Readily Available Standard Inductors  
Thermal Shutdown and Current Limit Protection  
Moisture Sensitivity Level 3  
1
5
Applications  
Simple High-Efficiency Step-Down(Buck) Regulator  
Efficient Pre-Regulator for Linear Regulators  
On-Card Switching Regulators  
TO-263 PKG  
Positive to Negative Converter(Buck-Boost)  
Negative Step-Up Converters  
1
5
Power Supply for Battery Chargers  
1. Vin 2. Output 3. Ground  
4. Feedback 5. On/Off  
DESCRIPTION  
ORDERING INFORMATION  
The LM2576 series of regulators are monolithic integrated  
circuits ideally suited for easy and convenient design of a  
step-down switching regulator(buck converter).  
Device  
Marking  
Package  
TO-220  
TO-220V  
TO-263  
LM2576T-X.X  
LM2576T-X.X  
LM2576TV-X.X LM2576T-X.X  
LM2576R LM2576R-X.X  
All circuits of this series are capable of driving a 3.0A load  
with excellent line and load regulation. These devices are  
available in fixed output voltages of 3.3V, 5.0V,12V, 15V,  
and an adjustable output version.  
These regulators were designed to minimize the number of external components to simplify the  
power supply design. Standard series of inductors optimized for use with the LM2576 are offered  
by several different inductor manufacturers.  
Since the LM2576 converter is a switch-mode power supply, its efficiency is significantly higher in  
comparison with popular three-terminal linear regulators, especially with higher input voltages.  
In many cases, the power dissipated is so low that no heatsink is required or its size could  
be reduced dramatically. A standard series of inductors optimized for use with the LM2576 are  
available from several different manufacturers. This feature greatly simplifies the design of  
switch-mode power supplies. The LM2576 features include a guaranteed +/- 4% tolerance  
on output voltage within specified input voltages and output load conditions, and +/-10% on the  
oscillator frequency (+/- 2% over 0oC to 125 oC).  
External shutdown is included, featuring 80 ㎂(typical) standby current. The output switch includes  
cycle-bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.  
2008 - Ver. 1.0  
HTC  
- 1 -  
1234567...14

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