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LM22674QMR-5.0/NOPB PDF预览

LM22674QMR-5.0/NOPB

更新时间： 2024-11-25 12:02:11
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
22页 2087K
描述
LM22674/LM22674-Q1 42V, 500 mA SIMPLE SWITCHER® Step-Down Voltage Regulator with Features

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LM22674QMR-5.0/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HLSOP,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.55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：42 V最小输入电压：4.5 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：3功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.9 A
最大输出电压：37 V最小输出电压：1.285 V
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装代码：HLSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE峰值回流温度（摄氏度）：260
座面最大高度：1.68 mm表面贴装：YES
切换器配置：BUCK最大切换频率：500 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

LM22674QMR-5.0/NOPB 数据手册

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LM22674  
www.ti.com  
SNVS590L –SEPTEMBER 2008–REVISED APRIL 2013  
LM22674/LM22674-Q1 42V, 500 mA SIMPLE SWITCHER® Step-Down Voltage Regulator  
with Features  
Check for Samples: LM22674  
1
FEATURES  
DESCRIPTION  
The LM22674 switching regulator provides all of the  
functions necessary to implement an efficient high  
voltage step-down (buck) regulator using a minimum  
of external components. This easy to use regulator  
2
•
Wide Input Voltage Range: 4.5V to 42V  
Internally Compensated Voltage Mode Control  
Stable with Low ESR Ceramic Capacitors  
200 mΩ N-Channel MOSFET  
•
•
•
•
incorporates  
a 42V N-channel MOSFET switch  
capable of providing up to 500mA of load current.  
Excellent line and load regulation along with high  
efficiency (>90%) are featured. Voltage mode control  
offers short minimum on-time, allowing the widest  
ratio between input and output voltages. Internal loop  
compensation means that the user is free from the  
tedious task of calculating the loop compensation  
components. Fixed 5V output and adjustable output  
voltage options are available. A switching frequency  
of 500 kHz allows for small external components and  
good transient response. A precision enable input  
allows simplification of regulator control and system  
power sequencing. In shutdown mode the regulator  
draws only 25 µA (typ.). Built in soft-start (500µs, typ)  
saves external components. The LM22674 also has  
built in thermal shutdown, and current limiting to  
protect against accidental overloads.  
Output Voltage Options:  
–
–
ADJ (Outputs as Low as 1.285V)  
5.0 (Output Fixed to 5V)  
•
•
•
±1.5% Feedback Reference Accuracy  
Switching Frequency of 500 kHz  
-40°C to 125°C Operating Junction  
Temperature Range  
•
•
•
•
•
Precision Enable Pin  
Integrated Boot-Strap Diode  
Integrated Soft-Start  
Fully WEBENCH® Enabled  
LM22674-Q1 is an Automotive Grade product  
that is AEC-Q100 Grade 1 Qualified (-40°C to  
+125°C Operating Junction Temperature)  
The LM22674 is a member of Texas Instruments'  
SIMPLE SWITCHER™ family. The SIMPLE  
SWITCHER™ concept provides for an easy to use  
complete design using a minimum number of external  
components and the TI WEBENCH® design tool. TI's  
WEBENCH® tool includes features such as external  
component calculation, electrical simulation, thermal  
simulation, and Build-It boards for easy design-in.  
PACKAGE  
•
SO PowerPAD (Exposed Pad)  
APPLICATIONS  
•
•
•
•
Industrial Control  
Telecom and Datacom Systems  
Embedded Systems  
Conversions from Standard 24V, 12V and 5V  
Input Rails  
Simplified Application Schematic  
VIN  
VIN  
FB  
BOOT  
SW  
LM22674-ADJ  
VOUT  
EN  
GND  
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.  
All trademarks are the property of their respective owners.  
2
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 © 2008–2013, Texas Instruments Incorporated  
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LM22674QMR-5.0/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM22674QMRX-5.0/NOPB TI

完全替代

 LM22674/LM22674-Q1 42V, 500 mA SIMPLE SWITCHE
LM22674QMRE-5.0/NOPB TI

类似代替

 LM22674/LM22674-Q1 42V, 500 mA SIMPLE SWITCHE

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