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LM25574Q0MT PDF预览

LM25574Q0MT

更新时间： 2024-10-28 12:09:43
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光电二极管
页数 文件大小 规格书
29页 886K
描述
LM25574/LM25574-Q1 SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator

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中文翻译

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LM25574Q0MT 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP-16
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.65Is Samacsys：N
其他特性：ALSO OPERATES AS LDO REGULATOR模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：42 V最小输入电压：6 V
标称输入电压：24 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：16最大输出电流：0.9 A
标称输出电压：7.15 V封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
座面最大高度：1.1 mm表面贴装：YES
切换器配置：BUCK最大切换频率：545 kHz
端子面层：Tin/Lead (Sn85Pb15)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
宽度：4.4 mmBase Number Matches：1

LM25574Q0MT 数据手册

 浏览型号LM25574Q0MT的Datasheet PDF文件第2页浏览型号LM25574Q0MT的Datasheet PDF文件第3页浏览型号LM25574Q0MT的Datasheet PDF文件第4页浏览型号LM25574Q0MT的Datasheet PDF文件第5页浏览型号LM25574Q0MT的Datasheet PDF文件第6页浏览型号LM25574Q0MT的Datasheet PDF文件第7页 
LM25574, LM25574-Q1  
www.ti.com  
SNVS483G –JANUARY 2007–REVISED APRIL 2013  
LM25574/LM25574-Q1 SIMPLE SWITCHER® 42V, 0.5A Step-Down Switching Regulator  
Check for Samples: LM25574, LM25574-Q1  
1
FEATURES  
DESCRIPTION  
The LM25574 is an easy to use SIMPLE  
SWITCHER® buck regulator which allows design  
engineers to design and optimize a robust power  
23  
•
LM25574-Q1 is an Automotive Grade Product  
that is AEC-Q100 Grade 1 Qualified (−40°C to +  
125°C Operating Junction Temperature)  
supply using  
a
minimum set of components.  
•
•
•
•
•
Integrated 42V, 750mΩ N-channel MOSFET  
Ultra-wide Input Voltage Range from 6V to 42V  
Adjustable Output Voltage as Low as 1.225V  
1.5% Feedback Reference Accuracy  
Operating with an input voltage range of 6 - 42V, the  
LM25574 delivers 0.5A of continuous output current  
with an integrated 750mΩ N-Channel MOSFET. The  
regulator utilizes an Emulated Current Mode  
architecture which provides inherent line regulation,  
tight load transient response, and ease of loop  
compensation without the usual limitation of low-duty  
cycles associated with current mode regulators. The  
operating frequency is adjustable from 50kHz to  
1MHz to allow optimization of size and efficiency. To  
reduce EMI, a frequency synchronization pin allows  
multiple IC’s from the LM(2)557x family to self-  
synchronize or to synchronize to an external clock.  
The LM25574 guarantees robustness with cycle-by-  
cycle current limit, short-circuit protection, thermal  
shut-down, and remote shut-down. The device is  
available in a TSSOP-16 package. The LM25574 is  
supported by the full suite of WEBENCH® On-Line  
design tools.  
Operating Frequency Adjustable Between  
50kHz and 1MHz with Single Resistor  
•
•
•
•
•
•
Master or Slave Frequency Synchronization  
Adjustable Soft-Start  
Emulated Current Mode Control Architecture  
Wide Bandwidth Error Amplifier  
Built-in Protection  
Automotive Grade Product Datasheet that is  
AEC-Q100 Grade 0 Qualified is Available Upon  
Request.  
–
(−40°C to + 150°C Operating Junction  
Temperature)  
PACKAGE  
APPLICATIONS  
•
TSSOP-16  
•
•
Automotive  
Industrial  
Simplified Application Schematic  
VIN  
BST  
SW  
VIN  
VOUT  
SYNC  
LM25574  
SD  
IS  
OUT  
FB  
RT  
VCC  
SS  
COMP  
GND  
RAMP  
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.  
WEBENCH is a registered trademark of Texas Instruments.  
2
3
All other trademarks are the property of their respective owners.  
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 © 2007–2013, Texas Instruments Incorporated  
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