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AC/DC & DC/DC converters (integrated FET)

LM5009A

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6V 至 95V 宽输入电压、150mA 恒准时非同步降压稳压器

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LM5163 正在供货 具有超低 IQ 的 100V 输入、0.5A 同步降压直流/直流转换器 Synchronous rectification for smaller footprint and high efficiency and low IQ.

LM5009A

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产品详情

Iout (max) (A) 0.15 Vin (min) (V) 6 Vin (max) (V) 95 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 85 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000485
Iout (max) (A) 0.15 Vin (min) (V) 6 Vin (max) (V) 95 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 85 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000485
VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (NGU) 8 16 mm² 4 x 4
  • Operating Input Voltage Range: 6 V to 95 V
  • Integrated 100-V, N-Channel Buck Switch
  • Internal Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • ON Time Varies Inversely With Input Voltage
  • Operating Frequency Remains Constant With Varying Line Voltage and Load Current
  • Adjustable Output Voltage From 2.5 V
  • Highly Efficient Operation
  • Precision Internal Reference
  • Low Bias Current
  • Intelligent Current Limit
  • Thermal Shutdown
  • 8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages
  • Operating Input Voltage Range: 6 V to 95 V
  • Integrated 100-V, N-Channel Buck Switch
  • Internal Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • ON Time Varies Inversely With Input Voltage
  • Operating Frequency Remains Constant With Varying Line Voltage and Load Current
  • Adjustable Output Voltage From 2.5 V
  • Highly Efficient Operation
  • Precision Internal Reference
  • Low Bias Current
  • Intelligent Current Limit
  • Thermal Shutdown
  • 8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed.

The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to VOUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (VCC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed.

The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to VOUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (VCC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM5009A 100-V, 150-mA Constant ON-Time Buck Switching Regulator 数据表 (Rev. H) PDF | HTML 2016年 9月 30日
白皮书 Wide VIN power management ICs simplify white paper (Rev. A) 2013年 9月 19日
EVM 用户指南 AN-1955 LM5009A Evaluation Board (Rev. A) 2013年 4月 30日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

LM5009AEVAL — 用于 LM5009A 的评估板

The LM5009AEVAL evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 5V output over an input range of 8V to 75V. The circuit delivers load currents to 150 mA, with current (...)

用户指南: PDF
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仿真模型

LM5009 TINA-TI Transient Reference Design

SNVM035.TSC (141 KB) - TINA-TI Reference Design
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仿真模型

LM5009 TINA-TI Transient Spice Model

SNVM036.ZIP (15 KB) - TINA-TI Spice Model
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计算工具

LM5009AQUICK-CALC — LM5009A 快速入门计算器

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封装 引脚 下载
VSSOP (DGK) 8 查看选项
WSON (NGU) 8 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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