5秒后页面跳转
LM3489QMMX PDF预览

LM3489QMMX

更新时间: 2024-11-26 05:42:03
品牌 Logo 应用领域
美国国家半导体 - NSC 开关光电二极管控制器
页数 文件大小 规格书
16页 354K
描述
Hysteretic PFET Buck Controller with Enable Pin

LM3489QMMX 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:PLASTIC, MSOP-8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.21其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 1.239 V TO 35 V; ALSO OPERATES IN PWM CONTROL TECHNIQUE
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:CURRENT-MODE
控制技术:HYSTERETIC CURRENT MODE最大输入电压:35 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:S-PDSO-G8JESD-609代码:e0
长度:3 mm湿度敏感等级:1
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
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP8,.19封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN 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:1.09 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK温度等级:AUTOMOTIVE
端子面层:Tin/Lead (Sn85Pb15)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3 mm
Base Number Matches:1

LM3489QMMX 数据手册

 浏览型号LM3489QMMX的Datasheet PDF文件第2页浏览型号LM3489QMMX的Datasheet PDF文件第3页浏览型号LM3489QMMX的Datasheet PDF文件第4页浏览型号LM3489QMMX的Datasheet PDF文件第5页浏览型号LM3489QMMX的Datasheet PDF文件第6页浏览型号LM3489QMMX的Datasheet PDF文件第7页 
June 23, 2008  
LM3489/LM3489Q  
Hysteretic PFET Buck Controller with Enable Pin  
High efficiency 93%  
General Description  
±1.3% (±2% over temp) internal reference  
The LM3489 is a high efficiency PFET switching regulator  
100% duty cycle operation  
controller that can be used to quickly and easily develop a  
small, cost effective, switching buck regulator for a wide range  
of applications. The hysteretic control architecture provides  
for simple design without any control loop stability concerns  
using a wide variety of external components. The PFET ar-  
chitecture also allows for low component count as well as  
ultra-low dropout, 100% duty cycle operation. Another benefit  
is high efficiency operation at light loads without an increase  
in output ripple. A dedicated Enable Pin provides a shutdown  
mode drawing only 7µA. Leaving the Enable Pin unconnected  
defaults to on.  
Maximum operation frequency > 1MHz  
Current limit protection  
Dedicated enable pin (on if unconnected)  
Shutdown mode draws only 7µA supply current  
MSOP-8  
LM3489 is AEC-Q100 Grade 1 qualified  
Applications  
Set-Top Box  
Current limit protection can be implemented by measuring the  
voltage across the PFET’s RDS(ON), thus eliminating the need  
for a sense resistor. A sense resistor may be used to improve  
current limit accuracy if desired. The cycle-by-cycle current  
limit can be adjusted with a single resistor, ensuring safe op-  
eration over a range of output currents.  
DSL/Cable Modem  
PC/IA  
Auto PC  
TFT Monitor  
Battery Powered Portable Applications  
Distributed Power Systems  
Features  
Always On Power  
Easy to use control methodology  
High Power LED Driver  
No control loop compensation required  
Automotive  
Wide 4.5V to 35V input range  
1.239V to VIN adjustable output range  
Typical Application Circuit  
20186908  
© 2008 National Semiconductor Corporation  
201869  
www.national.com  

LM3489QMMX 替代型号

型号 品牌 替代类型 描述 数据表
LM3489QMM NSC

功能相似

Hysteretic PFET Buck Controller with Enable Pin

与LM3489QMMX相关器件

型号 品牌 获取价格 描述 数据表
LM3489QMMX/NOPB TI

获取价格

具有使能引脚的汽车级 4.5V 至 35V、滞环非同步 PFET 降压控制器 | DGK
LM348D TI

获取价格

QUADRUPLE OPERATIONAL AMPLIFIERS
LM348D STMICROELECTRONICS

获取价格

FOUR UA741 QUAD BIPOLAR OPERATIONAL AMPLIFIERS
LM348D3 TI

获取价格

IC,OP-AMP,QUAD,BIPOLAR,SOP,14PIN,PLASTIC
LM348DE4 TI

获取价格

QUADRUPLE OPERATIONAL AMPLIFIERS
LM348DG4 TI

获取价格

QUADRUPLE OPERATIONAL AMPLIFIERS
LM348DP1 TI

获取价格

IC,OP-AMP,QUAD,BIPOLAR,SOP,14PIN,PLASTIC
LM348DP3 TI

获取价格

IC,OP-AMP,QUAD,BIPOLAR,SOP,14PIN,PLASTIC
LM348DR TI

获取价格

QUADRUPLE OPERATIONAL AMPLIFIERS
LM348DRE4 TI

获取价格

QUADRUPLE OPERATIONAL AMPLIFIERS