NS LM5118宽电压升/降压电源方案
ns lm5118宽电压升/降压电源方案
the lm5118 wide voltage range buck-boost switching regulator controller features all of the functions necessary to implement a high performance, cost efficient buck-boost regulator using a minimum of external components. the buck-boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage making it especially suitable for automotive applications. the lm5118 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. this dual mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. this easy to use controller includes drivers for the high side buck mosfet and the low side boost mosfet. the regulator’s control method is based upon current mode control utilizing an emulated current ramp. emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. additional protection features include current limit, thermal shutdown and an enable input. the device is available in a power enhanced tssop-20 package featuring an exposed die attach pad to aid thermal dissipation.
lm5118主要特性:
■ ultra-wide input voltage range from 3v to 75v
■ emulated peak current mode control
■ smooth transition between step-down and step- up modes
■ switching frequency programmable to 500khz
■ oscillator synchronization capability
■ internal high voltage bias regulator
■ integrated high and low-side gate drivers
■ programmable soft-start time
■ ultra low shutdown current
■ enable input wide bandwidth error amplifier
■ 1.5% feedback reference accuracy
■ thermal shutdown
图1.lm5118方框图和典型应用电路图
图2.12v/3a典型应用电路图
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NS LM5118宽电压升/降压电源方案
Jetpack WindowManager 1.1 稳定版
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去耦电容的选择、容值计算和布局布线（一）
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晶体知识：位错的基本类型和特征
基于SiC功率模块的高效逆变器设计方案
电路板四层板和两层板有什么区别?
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5G向垂直行业拓展的杀手锏
汽车各个零部件的更换时间是多久
MIMO,MIMO是什么意思,什么是MIMO无线通信技术
印制线路板刷涂防潮氧化涂液
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the lm5118 wide voltage range buck-boost switching regulator controller features all of the functions necessary to implement a high performance, cost efficient buck-boost regulator using a minimum of external components. the buck-boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage making it especially suitable for automotive applications. the lm5118 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. this dual mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. this easy to use controller includes drivers for the high side buck mosfet and the low side boost mosfet. the regulator’s control method is based upon current mode control utilizing an emulated current ramp. emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. additional protection features include current limit, thermal shutdown and an enable input. the device is available in a power enhanced tssop-20 package featuring an exposed die attach pad to aid thermal dissipation.
lm5118主要特性:
■ ultra-wide input voltage range from 3v to 75v
■ emulated peak current mode control
■ smooth transition between step-down and step- up modes
■ switching frequency programmable to 500khz
■ oscillator synchronization capability
■ internal high voltage bias regulator
■ integrated high and low-side gate drivers
■ programmable soft-start time
■ ultra low shutdown current
■ enable input wide bandwidth error amplifier
■ 1.5% feedback reference accuracy
■ thermal shutdown
图1.lm5118方框图和典型应用电路图
图2.12v/3a典型应用电路图
台湾远翔电源管理芯片
霍尔电流传感器如何测量电流
GaN HEMT器件结构解析
瑞能股份申请创业板IPO获受理
小米10 Pro珍珠白高清图集
NS LM5118宽电压升/降压电源方案
Jetpack WindowManager 1.1 稳定版
影响云原生应用性能的关键因素为什么是监控？
去耦电容的选择、容值计算和布局布线（一）
测试MPF102构成的直耦级联放大电路验证电路稳定性
晶体知识：位错的基本类型和特征
基于SiC功率模块的高效逆变器设计方案
电路板四层板和两层板有什么区别?
关于欧美集成电路发展动态分析和应用
了解用话题建模分析在线产品评论的重要性
5G向垂直行业拓展的杀手锏
汽车各个零部件的更换时间是多久
MIMO,MIMO是什么意思,什么是MIMO无线通信技术
印制线路板刷涂防潮氧化涂液
更换机器人过程中出现MAM文件数值丢失故障原因