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LM3671MFX-1.375/NOPB

更新时间： 2024-11-14 12:19:23
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德州仪器 - TI 转换器
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38页 6811K
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LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter

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LM3671MFX-1.375/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOT-23
包装说明：LSSOP, TSOP5/6,.11,37针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.32
其他特性：PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE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：5.5 V最小输入电压：2.7 V
标称输入电压：3.6 VJESD-30 代码：R-PDSO-G5
JESD-609代码：e3长度：2.9 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：-30 °C最大输出电流：1.15 A
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装等效代码：TSOP5/6,.11,37封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.45 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：2600 kHz
温度等级：OTHER端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.6 mm

LM3671MFX-1.375/NOPB 数据手册

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LM3671  
LM3671Q  
www.ti.com  
SNVS294Q –NOVEMBER 2004–REVISED NOVEMBER 2013  
LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter  
Check for Samples: LM3671, LM3671Q  
1
FEATURES  
APPLICATIONS  
2
•
•
•
•
•
16 µA Typical Quiescent Current  
•
•
•
•
•
•
•
•
Mobile Phones  
PDAs  
600 mA Maximum Load Capability  
2 MHz PWM Fixed Switching Frequency (typ.)  
Automatic PFM/PWM Mode Switching  
MP3 Players  
W-LAN  
Internal Synchronous Rectification for High  
Efficiency  
Portable Instruments  
Digital Still Cameras  
Portable Hard Disk Drives  
Automotive  
•
•
•
•
Internal Soft Start  
0.01 µA Typical Shutdown Current  
Operates from a Single Li-Ion Cell Battery  
DESCRIPTION  
Only Three Tiny Surface-Mount External  
Components Required (One Inductor, Two  
Ceramic Capacitors)  
The LM3671 step-down DC-DC converter is  
optimized for powering low voltage circuits from a  
single Li-Ion cell battery and input voltage rails from  
2.7V to 5.5V. It provides up to 600 mA load current,  
over the entire input voltage range. There are several  
different fixed voltage output options available as well  
as an adjustable output voltage version range from  
1.1V to 3.3V.  
•
•
•
•
Current Overload and Thermal Shutdown  
Protection  
Available in Fixed Output Voltages and  
Adjustable Version  
LM3671Q is an Automotive Grade Product that  
is AEC-Q100 Grade 1 Qualified  
The device offers superior features and performance  
for mobile phones and similar portable systems.  
Automatic intelligent switching between PWM low-  
noise and PFM low-current mode offers improved  
system control. During PWM mode, the device  
operates at a fixed-frequency of 2 MHz (typ.).  
Hysteretic PFM mode extends the battery life by  
reducing the quiescent current to 16 µA (typ.) during  
light load and standby operation. Internal  
synchronous rectification provides high efficiency  
during PWM mode operation. In shutdown mode, the  
device turns off and reduces battery consumption to  
0.01 µA (typ.).  
SOT-23, 5-Bump DSBGA and 6-Pin USON  
Packages  
TYPICAL APPLICATION CIRCUITS  
V
IN  
L1: 2.2 PH  
2.7V to 5.5V  
V
V
OUT  
IN  
SW  
1
2
3
5
C
OUT  
C
IN  
LM3671  
10 PF  
GND  
EN  
4.7 PF  
FB  
4
Figure 1. Typical Application Circuit  
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 © 2004–2013, Texas Instruments Incorporated  
 
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