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LM3671MFX-2.8 PDF预览

LM3671MFX-2.8

更新时间: 2024-11-14 04:44:23
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器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
24页 7461K
描述
2MHz, 600mA Step-Down DC-DC Converter

LM3671MFX-2.8 技术参数

是否Rohs认证:不符合生命周期:Transferred
包装说明:2.92 X 2.84 MM, 1.20 MM HEIGHT, SOT-23, 5 PINReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.12Is Samacsys:N
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:e0长度:2.92 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认证状态:Not Qualified
座面最大高度:1.22 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:0.953 mm端子位置:DUAL
宽度:1.6 mmBase Number Matches:1

LM3671MFX-2.8 数据手册

 浏览型号LM3671MFX-2.8的Datasheet PDF文件第2页浏览型号LM3671MFX-2.8的Datasheet PDF文件第3页浏览型号LM3671MFX-2.8的Datasheet PDF文件第4页浏览型号LM3671MFX-2.8的Datasheet PDF文件第5页浏览型号LM3671MFX-2.8的Datasheet PDF文件第6页浏览型号LM3671MFX-2.8的Datasheet PDF文件第7页 
November 29, 2007  
LM3671  
2MHz, 600mA Step-Down DC-DC Converter  
General Description  
Features  
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  
600mA load current, over the entire input voltage range.  
There are several different fixed voltage output options avail-  
able as well as an adjustable output voltage version range  
from 1.1V to 3.3V.  
16 µA typical quiescent current  
600 mA maximum load capability  
2 MHz PWM fixed switching frequency (typ)  
Automatic PFM/PWM mode switching  
Internal synchronous rectification for high efficiency  
Internal soft start  
The device offers superior features and performance for mo-  
bile phones and similar portable systems. Automatic intelli-  
gent 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). Hys-  
teretic 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 ef-  
ficiency during PWM mode operation. In shutdown mode, the  
device turns off and reduces battery consumption to 0.01 µA  
(typ).  
0.01 µA typical shutdown current  
Operates from a single Li-Ion cell battery  
Only three tiny surface-mount external components  
required (one inductor, two ceramic capacitors)  
Current overload and Thermal shutdown protection  
Available in fixed output voltages and adjustable version  
SOT23-5, 5-bump micro SMD and 6-pin LLP packages  
Applications  
Mobile phones  
The LM3671 is available in SOT23-5, tiny 5-bump micro SMD  
and a 6-pin LLP packages in leaded (PB) and lead-free (NO  
PB) versions. A high switching frequency of 2 MHz (typ) al-  
lows use of tiny surface-mount components. Only three ex-  
ternal surface-mount components, an inductor and two  
ceramic capacitors, are required.  
PDAs  
MP3 players  
W-LAN  
Portable instruments  
Digital still cameras  
Portable Hard disk drives  
Typical Application Circuits  
20108401  
FIGURE 1. Typical Application Circuit  
© 2007 National Semiconductor Corporation  
201084  
www.national.com  

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