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LM22672MR-5.0/NOPB PDF预览

LM22672MR-5.0/NOPB

更新时间： 2024-09-17 00:51:39
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
30页 1331K
描述
SIMPLE SWITCHER® Step-Down Voltage Regulator with Features

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LM22672MR-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：0.77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：1.8 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：1000 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

LM22672MR-5.0/NOPB 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
LM22672, LM22672-Q1  
SNVS588M –SEPTEMBER 2008–REVISED NOVEMBER 2014  
®
LM22672/-Q1 42-V, 1-A SIMPLE SWITCHER Step-Down Voltage Regulator  
with Features  
1 Features  
3 Description  
The LM22672 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  
incorporates a 42 V N-channel MOSFET switch  
capable of providing up to 1 A 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 5 V output and adjustable output  
voltage options are available.  
1
•
Wide Input Voltage Range: 4.5 V to 42 V  
Internally Compensated Voltage Mode Control  
Stable with Low ESR Ceramic Capacitors  
200 mΩ N-Channel MOSFET  
•
•
•
•
Output Voltage Options:  
-ADJ (Outputs as Low as 1.285 V)  
-5.0 (Output Fixed to 5 V)  
•
•
•
±1.5% Feedback Reference Accuracy  
500 kHz Default Switching Frequency  
Adjustable Switching Frequency and  
Synchronization  
•
•
•
•
•
•
–40°C to 125°C Junction Temperature Range  
Precision Enable Input  
The default switching frequency is set at 500 kHz  
allowing for small external components and good  
transient response. In addition, the frequency can be  
adjusted over a range of 200 kHz to 1 MHz with a  
single external resistor. The internal oscillator can be  
synchronized to a system clock or to the oscillator of  
another regulator. A precision enable input allows  
simplification of regulator control and system power  
sequencing. In shutdown mode the regulator draws  
only 25 µA (typ). An adjustable soft-start feature is  
provided through the selection of a single external  
capacitor. The LM22672 also has built in thermal  
shutdown, and current limiting to protect against  
accidental overloads.  
Integrated Boot-Strap Diode  
Adjustable Soft-Start  
Fully WEBENCH® Enabled  
LM22672-Q1 is an Automotive Grade Product  
that is AEC-Q100 Grade 1 Qualified (–40°C to  
+125°C Junction Temperature)  
•
SO PowerPAD (Exposed Pad)  
2 Applications  
•
•
•
•
Industrial Control  
Telecom and Datacom Systems  
Embedded Systems  
The LM22672 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.  
Conversions from Standard 24 V, 12 V and 5 V  
Input Rails  
Simplified Application Schematic  
VIN  
FB  
BOOT  
SW  
VIN  
Device Information(1)  
LM22672-ADJ  
VOUT  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
RT/SYNC SS EN GND  
LM22672,  
LM22672-Q1  
HSOP (8)  
4.89 mm x 3.90 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
 
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LM22672MR-5.0/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM22672MRX-5.0/NOPB TI

类似代替

 SIMPLE SWITCHER® Step-Down Voltage Regulator
LM22672MRE-5.0/NOPB TI

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 SIMPLE SWITCHER® Step-Down Voltage Regulator

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