ZHCS996D June   2012  – February 2018 TPS81256

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
      2.      效率与负载电流间的关系
  4. 4 修订历史记录
  5. 5 Device Options
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Operation
      2. 8.3.2 Power-Save Mode
      3. 8.3.3 Current Limit Operation, Maximum Output Current
    4. 8.4 Device Functional Modes
      1. 8.4.1 Softstart, Enable
      2. 8.4.2 Load Disconnect and Reverse Current Protection
      3. 8.4.3 Undervoltage Lockout
      4. 8.4.4 Thermal Regulation
      5. 8.4.5 Thermal Shutdown
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Capacitor Selection CEXT
        2. 9.2.2.2 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Surface Mount Information
    4. 11.4 Thermal and Reliability Information
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 12.2 社区资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  13. 13机械、封装和可订购信息

8.1 Overview

The TPS81256 is a stand-alone, synchronous, step-up converter module. The converter operates at a quasi-constant 4-MHz frequency pulse width modulation (PWM) at moderate to heavy load currents. At light load currents, the TPS81256 converter operates in power-save mode with pulse frequency modulation (PFM).
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