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LM5576QMH PDF预览

LM5576QMH

更新时间: 2024-11-09 05:42:23
品牌 Logo 应用领域
美国国家半导体 - NSC 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输出元件
页数 文件大小 规格书
24页 445K
描述
SIMPLE SWITCHER 75V, 3A Step-Down Switching Regulator

LM5576QMH 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSSOP-20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.19其他特性:ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 1.225V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:75 V
最小输入电压:6 V标称输入电压:48 V
JESD-30 代码:R-PDSO-G20JESD-609代码:e0
长度:6.5 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:3 A标称输出电压:7.15 V
封装主体材料:PLASTIC/EPOXY封装代码:HSSOP
封装等效代码:TSSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:545 kHz
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宽度:4.4 mm
Base Number Matches:1

LM5576QMH 数据手册

 浏览型号LM5576QMH的Datasheet PDF文件第2页浏览型号LM5576QMH的Datasheet PDF文件第3页浏览型号LM5576QMH的Datasheet PDF文件第4页浏览型号LM5576QMH的Datasheet PDF文件第5页浏览型号LM5576QMH的Datasheet PDF文件第6页浏览型号LM5576QMH的Datasheet PDF文件第7页 
March 23, 2009  
LM5576/LM5576Q  
SIMPLE SWITCHER® 75V, 3A Step-Down Switching  
Regulator  
General Description  
Features  
The LM5576 is an easy to use SIMPLE SWITCHER® buck  
regulator which allows design engineers to design and opti-  
mize a robust power supply using a minimum set of compo-  
nents. Operating with an input voltage range of 6 - 75V, the  
LM5576 delivers 3A of continuous output current with an in-  
tegrated 170mN-Channel MOSFET. The regulator utilizes  
an Emulated Current Mode architecture which provides in-  
herent line regulation, tight load transient response, and ease  
of loop compensation without the usual limitation of low-duty  
cycles associated with current mode regulators. The operat-  
ing frequency is adjustable from 50kHz to 500kHz to allow  
optimization of size and efficiency. To reduce EMI, a frequen-  
cy synchronization pin allows multiple IC’s from the  
LM(2)557x family to self-synchronize or to synchronize to an  
external clock. The LM5576 guarantees robustness with cy-  
cle-by-cycle current limit, short-circuit protection, thermal  
shut-down, and remote shut-down. The device is available in  
a power enhanced TSSOP-20 package featuring an exposed  
die attach pad for thermal dissipation. The LM5576 is sup-  
ported by the full suite of WEBENCH® On-Line design tools.  
LM5576Q is an Automotive Grade product that is AEC-  
Q100 grade 1 qualified (−40°C to + 125°C operating  
junction temperature)  
Integrated 75V, 170mN-channel MOSFET  
Ultra-wide input voltage range from 6V to 75V  
Adjustable output voltage as low as 1.225V  
1.5% feedback reference accuracy  
Operating frequency adjustable between 50kHz and  
500kHz with single resistor  
Master or slave frequency synchronization  
Adjustable soft-start  
Emulated current mode control architecture  
Wide bandwidth error amplifier  
Built-in protection  
Automotive Grade product datasheet that is AEC-Q100  
grade 0 qualified is available upon request.  
(−40°C to + 150°C operating junction temperature)  
Package  
TSSOP-20EP (Exposed Pad)  
Applications  
Automotive  
Industrial  
Simplified Application Schematic  
20189901  
WEBENCH® is a registered trademark of National Semiconductor Corporation.  
© 2009 National Semiconductor Corporation  
201899  
www.national.com  

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