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LM3674MFX-1.5 PDF预览

LM3674MFX-1.5

更新时间: 2024-11-15 12:02:11
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德州仪器 - TI 转换器
页数 文件大小 规格书
25页 4419K
描述
LM3674 2MHz, 600mA Step-Down DC-DC Converter in SOT-23

LM3674MFX-1.5 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
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:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.12
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 V
JESD-30 代码:R-PDSO-G5JESD-609代码:e0
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:1.2 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:Tin/Lead (Sn/Pb)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
Base Number Matches:1

LM3674MFX-1.5 数据手册

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LM3674  
www.ti.com  
SNVS405F DECEMBER 2005REVISED MAY 2013  
LM3674 2MHz, 600mA Step-Down DC-DC Converter in SOT-23  
Check for Samples: LM3674  
1
FEATURES  
DESCRIPTION  
The LM3674 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 600mA load current,  
over the entire input voltage range. There are several  
fixed output voltages and adjustable output voltage  
versions.  
2
600mA Max Load Current  
Input Voltage Range from 2.7V to 5.5V  
Available in Fixed and Adjustable Output  
Voltages Ranging from 1.0V to 3.3V  
Operates from a Single Li-Ion Cell Battery  
Internal Synchronous Rectification for High  
Efficiency  
The device offers superior features and performance  
for mobile phones and similar portable systems.  
During PWM mode, the device operates at a fixed-  
frequency of 2 MHz (typ). Internal synchronous  
rectification provides high efficiency during Pulse  
Width Modulation (PWM) mode operation. In  
shutdown mode, the device turns off and reduces  
battery consumption to 0.01 µA (typ).  
Internal Soft Start  
0.01 µA Typical Shutdown Current  
2 MHz PWM Fixed Switching Frequency (typ)  
5-Pin SOT-23 Package  
Current Overload Protection and Thermal  
Shutdown Protection  
The LM3674 is available in a 5-pin SOT-23 package  
in leaded (PB) and lead-free (NO PB) versions. A  
high switching frequency of 2 MHz (typ) allows use of  
only three tiny external surface-mount components,  
an inductor and two ceramic capacitors.  
APPLICATIONS  
Mobile Phones  
PDAs  
MP3 Players  
Portable Instruments  
W-LAN  
Digital Still Cameras  
Portable Hard Disk Drives  
TYPICAL APPLICATION CIRCUITS  
V
IN  
L1:2.2 mH  
V
OUT  
2.7V to 5.5V  
V
IN  
SW  
1
2
5
C
OUT  
C
IN  
LM3674  
10 mF  
4.7 mF  
GND  
EN  
FB  
4
3
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.  
2
All 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 © 2005–2013, Texas Instruments Incorporated  
 

LM3674MFX-1.5 替代型号

型号 品牌 替代类型 描述 数据表
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