ZHCSU10P March   2000  – February 2025 LP2981-N

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Output Enable
      2. 6.3.2 Dropout Voltage
      3. 6.3.3 Current Limit
        1. 6.3.3.1 Current Limit (Legacy Chip)
        2. 6.3.3.2 Current Limit (New Chip)
      4. 6.3.4 Undervoltage Lockout (UVLO)
      5. 6.3.5 Thermal Shutdown
      6. 6.3.6 Output Pulldown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Recommended Capacitor Types
        1. 7.1.1.1 Recommended Capacitors (Legacy Chip)
          1. 7.1.1.1.1 Tantalum Capacitors
          2. 7.1.1.1.2 Ceramic Capacitors
          3. 7.1.1.1.3 Aluminum Capacitors
        2. 7.1.1.2 Recommended Capacitors (New Chip)
      2. 7.1.2 Input and Output Capacitor Requirements
        1. 7.1.2.1 Input Capacitor
        2. 7.1.2.2 Output Capacitor
      3. 7.1.3 Estimating Junction Temperature
      4. 7.1.4 Power Dissipation (PD)
      5. 7.1.5 Reverse Current
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 ON and OFF Input Operation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Nomenclature
    2. 8.2 第三方产品免责声明
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Related Documentation
    5. 8.5 支持资源
    6. 8.6 Trademarks
    7. 8.7 静电放电警告
    8. 8.8 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

9 Revision History

Changes from Revision O (December 2023) to Revision P (February 2025)

  • 更改了说明 部分的最后一段Go
  • Changed NC pin descriptionGo
  • Changed Short-Circuit Current vs Time (New Chip), Instantaneous Short-Circuit Current vs Temperature (New Chip), and Short-Circuit Current vs Output Voltage (VOUT) (New Chip) curvesGo
  • Changed Overview section to identify new chip informationGo
  • Changed Functional Block Diagrams section: changed legacy chip diagram, added new chip diagramGo
  • Changed Current Limit sectionGo
  • Added clarification to output voltage discharge discussion being applicable only to the new chip in the Disabled sectionGo
  • Added maximum supported ESR range discussion to Recommended Capacitors (New Chip) sectionGo
  • Changed Device Nomenclature sectionGo

Changes from Revision N (April 2016) to Revision O (December 2023)

  • 更新了整个文档中的表格、图和交叉参考的编号格式Go
  • 更改了整个文档以与当前系列格式保持一致Go
  • 向文档添加了 M3 器件Go
  • Added Device Nomenclature sectionGo