ZHCSP35A December   2021  – September 2022 TPS7A21

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and 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 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 Smart Enable (EN)
      2. 7.3.2 Low Output Noise
      3. 7.3.3 Active Discharge
      4. 7.3.4 Dropout Voltage
      5. 7.3.5 Foldback Current Limit
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Thermal Overload Protection (TSD)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended Capacitor Types
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Load Transient Response
      4. 8.1.4 Undervoltage Lockout (UVLO) Operation
      5. 8.1.5 Power Dissipation (PD)
      6. 8.1.6 Estimating Junction Temperature
      7. 8.1.7 Recommended Area For Continuous Operation
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Power Dissipation and Device Operation
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 DSBGA Mounting
        2. 8.4.1.2 DSBGA Light Sensitivity
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 术语表
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

4 Revision History

Changes from Revision * (December 2021) to Revision A (September 2022)

  • 向特征 部分中的输出电压容差 要点添加了线路、负载和温度 Go
  • 更改了特征 部分中的支持多种陶瓷电容器 要点Go
  • 更改了应用 部分Go
  • Changed description of OUT pin in Pin Functions: DSBGA tableGo
  • Changed typical short-circuit current limit from 300 mA to 325 mA.Go
  • Changed typical value of smart enable pulldown resistor from 450 kΩ to 440 kΩ.Go
  • Changed Output Voltage Accuracy vs IOUT and IQ vs VIN figures in Typical Characteristics sectionGo
  • Deleted second IGND vs IOUT figure from Typical Characteristics sectionGo
  • Added discussion regarding sources with limited current drive capability to Smart Enable (EN) sectionGo
  • Changed correct value to nominal value Go
  • Added discussion that input voltage must be high enough to enable the active discharge to Active Discharge sectionGo
  • Added last sentence to Dropout Operation sectionGo
  • Changed Input voltage and Output current parameters in Design Parameters tableGo
  • Changed Detailed Design Procedure sectionGo
  • Added Device Nomenclature sectionGo
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