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.

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 Features Enable, Frequency synchronization, Light Load Efficiency Iq (typ) (µA) 4600 Duty cycle (max) (%) 98 Number of phases 1
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 Features Enable, Frequency synchronization, Light Load Efficiency Iq (typ) (µA) 4600 Duty cycle (max) (%) 98 Number of phases 1
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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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 (...)
封装 引脚 CAD 符号、封装和 3D 模型
CFP (NAR) 20 Ultra Librarian

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

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