ZHCSLG3C June   2020  – August 2022 TPS7B86-Q1

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 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Enable (EN)
      2. 7.3.2 Power-Good (PG)
      3. 7.3.3 Adjustable Power-Good Delay Timer (DELAY)
      4. 7.3.4 Undervoltage Lockout
      5. 7.3.5 Thermal Shutdown
      6. 7.3.6 Current Limit
    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 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input and Output Capacitor Selection
      2. 8.1.2 Adjustable Device Feedback Resistor Selection
      3. 8.1.3 Feed-Forward Capacitor
      4. 8.1.4 Dropout Voltage
      5. 8.1.5 Reverse Current
      6. 8.1.6 Power Dissipation (PD)
        1. 8.1.6.1 Thermal Performance Versus Copper Area
        2. 8.1.6.2 Power Dissipation Versus Ambient Temperature
      7. 8.1.7 Estimating Junction Temperature
      8. 8.1.8 Power-Good
        1. 8.1.8.1 Setting the Adjustable Power-Good Delay
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Capacitor
        2. 8.2.2.2 Output Capacitor
      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 Package Mounting
        2. 8.4.1.2 Board Layout Recommendations to Improve PSRR and Noise Performance
      2. 8.4.2 Layout Examples
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 术语表
  10. 10Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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7.4.2 Normal Operation

The device regulates to the nominal output voltage when the following conditions are met:

  • The input voltage is greater than the nominal output voltage plus the dropout voltage (VOUT(nom) + VDO)
  • The output current is less than the current limit (IOUT < ICL)
  • The device junction temperature is less than the thermal shutdown temperature (TJ < TSD)
  • The enable voltage has previously exceeded the enable rising threshold voltage and has not yet decreased to less than the enable falling threshold
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