ZHCSCY3E October   2014  – October 2018 LM5160 , LM5160A

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型同步降压应用电路
      2.      典型 Fly-Buck 应用电路
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Control Circuit
      2. 7.3.2  VCC Regulator
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Soft Start
      5. 7.3.5  Error Amplifier
      6. 7.3.6  On-Time Generator
      7. 7.3.7  Current Limit
      8. 7.3.8  N-Channel Buck Switch and Driver
      9. 7.3.9  Synchronous Rectifier
      10. 7.3.10 Enable / Undervoltage Lockout (EN/UVLO)
      11. 7.3.11 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced Pulse Width Modulation (FPWM) Mode
      2. 7.4.2 Undervoltage Detector
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Ripple Configuration
    2. 8.2 Typical Applications
      1. 8.2.1 LM5160 Synchronous Buck (10-V to 60-V Input, 5-V Output, 1.5-A Load)
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1  Custom Design With WEBENCH® Tools
          2. 8.2.1.2.2  Feedback Resistor Divider - RFB1, RFB2
          3. 8.2.1.2.3  Switching Frequency - RON
          4. 8.2.1.2.4  Inductor - L
          5. 8.2.1.2.5  Output Capacitor - COUT
          6. 8.2.1.2.6  Series Ripple Resistor - RESR
          7. 8.2.1.2.7  VCC and Bootstrap Capacitors - CVCC, CBST
          8. 8.2.1.2.8  Input Capacitor - CIN
          9. 8.2.1.2.9  Soft-Start Capacitor - CSS
          10. 8.2.1.2.10 EN/UVLO Resistors - RUV1, RUV2
        3. 8.2.1.3 Application Curves
      2. 8.2.2 LM5160 Isolated Fly-Buck (18-V to 32-V Input, 12-V, 4.5-W Isolated Output)
        1. 8.2.2.1 LM5160 Fly-Buck Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Selection of VOUT1 and Turns Ratio
          2. 8.2.2.2.2 Secondary Rectifier Diode
          3. 8.2.2.2.3 External Ripple Circuit
          4. 8.2.2.2.4 Output Capacitor - COUT2
        3. 8.2.2.3 Application Curves
      3. 8.2.3 LM5160A Isolated Fly-Buck (18-V to 32-V Input, 12-V, 4.5-W Isolated Output)
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方产品免责声明
      2. 11.1.2 开发支持
        1. 11.1.2.1 使用 WEBENCH® 工具创建定制设计
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 相关链接
    4. 11.4 接收文档更新通知
    5. 11.5 社区资源
    6. 11.6 商标
    7. 11.7 静电放电警告
    8. 11.8 术语表
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

4 修订历史记录

Changes from D Revision (November 2017) to E Revision

  • Changed 特性 Go
  • Changed 说明Go
  • Changed 首页原理图Go
  • Changed Pinout DrawingGo
  • Changed Function Block DiagramGo
  • Changed Power Supply RecommendationsGo
  • Changed 相关文档 Go

Changes from C Revision (August 2016) to D Revision

  • Added 在数据表中添加了 WEBENCH 链接Go
  • Deleted the lead temperature from the Absolute Maximum Ratings table Go
  • Changed the Ripple Configuration section to the Application Information sectionGo
  • Changed the Application Performance Plots title to Application Curves in both typical application sectionsGo
  • Changed 静电放电注意事项声明Go

Changes from B Revision (July 2015) to C Revision

  • Changed 将标题中的满载额定值从 1.5A 更改成了 2AGo
  • Changed 将满载额定值从 1.5A 更改成了 2AGo
  • Changed 将满载额定值从 1.5A 更改成了 2A Go
  • 根据最新文档和翻译标准更新了数据表文本Go
  • Changed recommended output current rating from 1.5-A to 2-AGo
  • Changed full load rating from 1.5 A to 2 AGo
  • Changed minimum ripple injection equationGo
  • Deleted 'maximum' from the sentence Go
  • Deleted 'maximum' from the sentence Go
  • Deleted 'maximum' from the sentence Go
  • Changed equation for the required primary output voltage Go
  • Changed equation to add the isolated output voltage detailGo

Changes from A Revision (January 2015) to B Revision

  • Changed the input capacitor calculation equationGo

Changes from * Revision (October 2014) to A Revision

  • Added 在数据表中添加了“系列”Go
  • Added 在图形中的部件号中添加了“A”Go
  • Changed Handling Ratings to ESD Ratings Go
  • Added Ext VCC recommended operating data for LM5160A Go
  • Added conditions for LM5160AGo
  • Added Ext- VCC description for LM5160A Go
  • Added Application circuit with LM5160AGo
  • Added Don'ts with LM5160 Go
  • Added updated layout guidelines with LM5160AGo
  • Added updated layout diagram Go
  • Added 相关文档 Go