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AC/DC & DC/DC controllers (external FET)

LM5116WG

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100V 宽输入电压同步降压控制器

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LM5146 正在供货 具有宽占空比范围的 100V 同步降压直流/直流控制器 Smaller device footprint optimized for EMI requirements.

LM5116WG

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产品详情

Vin (min) (V) 6 Vin (max) (V) 100 Iout (max) (A) 20 Operating temperature range (°C) -40 to 125 Control mode current mode Rating Catalog Vout (min) (V) 1.215 Vout (max) (V) 80 Iq (typ) (A) 0.0046 Duty cycle (max) (%) 98
Vin (min) (V) 6 Vin (max) (V) 100 Iout (max) (A) 20 Operating temperature range (°C) -40 to 125 Control mode current mode Rating Catalog Vout (min) (V) 1.215 Vout (max) (V) 80 Iq (typ) (A) 0.0046 Duty cycle (max) (%) 98
CFP (NAR) 20 99.290124 mm² 13.716 x 7.239
  • Hermetic Package for Harsh Operating Environments
  • Emulated Peak Current Mode
  • Wide Operating Range up to 100V
  • Low IQ Shutdown (< 10 µA)
  • Drives Standard or Logic Level MOSFETs
  • Robust 3.5A Peak Gate Drive
  • Free-Run or Synchronous Operation to 1 MHz
  • Optional Diode Emulation Mode
  • Programmable Output from 1.215V to 80V
  • Precision 1.5% Voltage Reference
  • Programmable Current Limit
  • Programmable Soft-Start
  • Programmable Line Under-Voltage Lockout
  • Automatic Switch to External Bias Supply
  • CPGA-20 with No Thermal Shutdown

All trademarks are the property of their respective owners.
  • Hermetic Package for Harsh Operating Environments
  • Emulated Peak Current Mode
  • Wide Operating Range up to 100V
  • Low IQ Shutdown (< 10 µA)
  • Drives Standard or Logic Level MOSFETs
  • Robust 3.5A Peak Gate Drive
  • Free-Run or Synchronous Operation to 1 MHz
  • Optional Diode Emulation Mode
  • Programmable Output from 1.215V to 80V
  • Precision 1.5% Voltage Reference
  • Programmable Current Limit
  • Programmable Soft-Start
  • Programmable Line Under-Voltage Lockout
  • Automatic Switch to External Bias Supply
  • CPGA-20 with No Thermal Shutdown

All trademarks are the property of their respective owners.

The LM5116WG is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle by cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50 kHz to 1 MHz. The LM5116WG drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A low quiescent current shutdown disables the controller and consumes less than 10 µA of total input current. Additional features include a high voltage bias regulator, automatic switch-over to external bias for improved efficiency, frequency synchronization, cycle by cycle current limit and adjustable line under-voltage lockout. The device is available in a CPGA-20 high temperature ceramic package with the thermal shutdown feature disabled.

The LM5116WG is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle by cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50 kHz to 1 MHz. The LM5116WG drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A low quiescent current shutdown disables the controller and consumes less than 10 µA of total input current. Additional features include a high voltage bias regulator, automatic switch-over to external bias for improved efficiency, frequency synchronization, cycle by cycle current limit and adjustable line under-voltage lockout. The device is available in a CPGA-20 high temperature ceramic package with the thermal shutdown feature disabled.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LM5116WG Wide Range Synchronous Buck Controller 数据表 (Rev. D) 2013年 3月 17日
EVM 用户指南 AN-1596 LM5116 Evaluation Board (Rev. C) 2013年 4月 24日
EVM 用户指南 AN-1713 LM5116-12 Evaluation Board (Rev. A) 2013年 4月 24日
应用手册 Minimizing FET Losses For a High Input Rail Buck Converter (Rev. A) 2013年 4月 23日
应用手册 Minimizing FET Losses For a High Input Rail Buck Converter (cn) 最新英语版本 (Rev.A) 2007年 9月 5日

设计和开发

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计算工具

LM5116-5116WG-25116DESIGN-CALC — LM(2)5116/WG 快速入门组件计算器

Welcome to the LM5116, LM5116WG and LM25116 Quickstart Design Tool. This standalone tool assists the power supply engineer with the design of a DC/DC buck regulator based on a synchronous buck controller from this product family. As such, the user can expeditiously arrive at an optimized design to (...)
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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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