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LM5018MR

更新时间： 2024-11-14 12:21:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
17页 414K
描述
100V, 300mA Constant On-Time Synchronous Buck Regulator

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LM5018MR 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：HLSOP,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
其他特性：ADJUSTABLE OUTPUT VOLTAGE FROM 1.225V模拟集成电路 - 其他类型：SWITCHING REGULATOR
最大输入电压：100 V最小输入电压：9 V
JESD-30 代码：R-PDSO-G8长度：4.9 mm
功能数量：1端子数量：8
封装主体材料：PLASTIC/EPOXY封装代码：HLSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE
座面最大高度：1.68 mm表面贴装：YES
切换器配置：BUCK最大切换频率：1000 kHz
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

LM5018MR 数据手册

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February 9, 2012  
LM5018  
100V, 300mA Constant On-Time Synchronous Buck  
Regulator  
General Description  
Features  
The LM5018 is a 100V, 300mA synchronous step-down reg-  
ulator with integrated high side and low side MOSFETs. The  
constant-on-time (COT) control scheme employed in the  
LM5018 requires no loop compensation, provides excellent  
transient response, and enables very low step-down ratios.  
The on-time varies inversely with the input voltage resulting  
in nearly constant frequency over the input voltage range. A  
high voltage startup regulator provides bias power for internal  
operation of the IC and for integrated gate drivers.  
Wide 9V to 100V Input Range  
■
■
■
■
■
■
■
■
■
■
■
■
Integrated 100V, High and Low Side Switches  
No Schottky Required  
Constant On-time Control  
No Loop Compensation Required  
Ultra-Fast Transient Response  
Nearly Constant Operating Frequency  
Intelligent Peak Current Limit  
A peak current limit circuit protects against overload condi-  
tions. The undervoltage lockout (UVLO) circuit allows the  
input undervoltage threshold and hysteresis to be indepen-  
dently programmed. Other protection features include ther-  
mal shutdown and bias supply undervoltage lockout.  
Adjustable Output Voltage from 1.225V  
Precision 2% Feedback Reference  
Frequency Adjustable to 1MHz  
Adjustable Undervoltage Lockout  
The LM5018 is available in LLP-8 and PSOP-8 plastic pack-  
ages.  
Remote Shutdown  
■
Thermal Shutdown  
■
Packages  
LLP-8  
■
■
PSOP-8  
Applications  
Smart Power Meters  
■
■
■
■
Telecommunication Systems  
Automotive Electronics  
Isolated Bias Supply  
Typical Application  
30181601  
FIGURE 1.  
© 2012 Texas Instruments Incorporated  
301816 SNVS787B  
www.ti.com  
1234567...17

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