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LM2575D2T-12

更新时间： 2024-11-04 22:22:11
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 稳压器
页数 文件大小 规格书
28页 384K
描述
EASY SWITCHERE⑩ 1.0 A STEP-DOWN VOLTAGE REGULATOR

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中文翻译

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LM2575D2T-12 技术参数

生命周期：Transferred零件包装代码：D2PAK
包装说明：TO-263,针数：5
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.54
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：4.75 V标称输入电压：25 V
JESD-30 代码：R-PSSO-G5长度：10.02 mm
功能数量：1端子数量：5
最大输出电流：3.2 A标称输出电压：12 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
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：4.826 mm最大供电电流 (Isup)：11 mA
表面贴装：YES切换器配置：BUCK
最大切换频率：52 kHz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：NOT SPECIFIED宽度：9.1945 mm
Base Number Matches：1

LM2575D2T-12 数据手册

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Order this document by LM2575/D  
EASY SWITCHER  
1.0 A STEP–DOWN  
VOLTAGE REGULATOR  
The LM2575 series of regulators are monolithic integrated circuits ideally  
suited for easy and convenient design of a step–down switching regulator  
(buck converter). All circuits of this series are capable of driving a 1.0 A load  
with excellent line and load regulation. These devices are available in fixed  
output voltages of 3.3 V, 5.0 V, 12 V, 15 V, 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 optimised for use with the LM2575 are offered by several different  
inductor manufacturers.  
SEMICONDUCTOR  
TECHNICAL DATA  
Since the LM2575 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 by the LM2575 regulator is so low, that no heatsink is required or  
its size could be reduced dramatically.  
The LM2575 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 0°C to 125°C). External shutdown is  
included, featuring 80 µA typical standby current. The output switch includes  
cycle–by–cycle current limiting, as well as thermal shutdown for full  
protection under fault conditions.  
T SUFFIX  
PLASTIC PACKAGE  
CASE 314D  
1
5
Pin 1. V  
in  
2. Output  
3. Ground  
4. Feedback  
5. ON/OFF  
Features  
TV SUFFIX  
PLASTIC PACKAGE  
1
• 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions  
CASE 314B  
• Adjustable Version Output Voltage Range of 1.23 V to 37 V ±4%  
5
Maximum Over Line and Load Conditions  
Heatsink surface  
connected to Pin 3.  
• Guaranteed 1.0 A Output Current  
• Wide Input Voltage Range: 4.75 V to 40 V  
• Requires Only 4 External Components  
• 52 kHz Fixed Frequency Internal Oscillator  
• TTL Shutdown Capability, Low Power Standby Mode  
• High Efficiency  
D2T SUFFIX  
PLASTIC PACKAGE  
1
CASE 936A  
2
5
(D PAK)  
• Uses Readily Available Standard Inductors  
• Thermal Shutdown and Current Limit Protection  
Heatsink surface (shown as terminal 6 in case outline  
drawing) is connected to Pin 3.  
Applications  
• Simple and High–Efficiency Step–Down (Buck) Regulators  
• Efficient Pre–Regulator for Linear Regulators  
• On–Card Switching Regulators  
• Positive to Negative Converters (Buck–Boost)  
• Negative Step–Up Converters  
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE  
LM2575–3.3  
LM2575–5  
3.3 V  
5.0 V  
LM2575–12  
LM2575–15  
LM2575–Adj  
12 V  
15 V  
1.23 V to 37 V  
• Power Supply for Battery Chargers  
ORDERING INFORMATION  
Operating  
Temperature Range  
Device  
Package  
LM2575T–**  
Straight Lead  
Vertical Mount  
Surface Mount  
LM2575TV–** T = –40° to +125°C  
J
LM2575D2T–**  
** = Voltage Option, ie. 3.3, 5.0, 12, 15 V and  
** =\Adjustable Output.  
Motorola, Inc. 1999  
Rev 2, 07/1999  
1234567...28

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