ZHCSAL3T December   2005  – April 2025 TPS74401

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 Enable, Shutdown
      2. 6.3.2 Power-Good (VQFN Package Only)
      3. 6.3.3 Internal Current Limit
      4. 6.3.4 Thermal Protection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
    5. 6.5 Programming
      1. 6.5.1 Programmable Soft-Start
      2. 6.5.2 Sequencing Requirements
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Input, Output, and Bias Capacitor Requirements
      2. 7.1.2 Transient Response
      3. 7.1.3 Dropout Voltage
      4. 7.1.4 Output Noise
    2. 7.2 Typical Applications
      1. 7.2.1 Setting the TPS74401
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Using an Auxiliary Bias Rail
      3. 7.2.3 Without an Auxiliary Bias
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Power Dissipation
        2. 7.4.1.2 Thermal Considerations
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
      2. 8.1.2 Device Nomenclature
    2. 8.2 Device Support
      1. 8.2.1 Development Support
        1. 8.2.1.1 Evaluation Modules
        2. 8.2.1.2 Spice Models
    3. 8.3 接收文档更新通知
    4. 8.4 支持资源
    5. 8.5 Trademarks
    6. 8.6 静电放电警告
    7. 8.7 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.2.1.3 Application Curves

TPS74401 Turn-On ResponseFigure 7-2 Turn-On Response
TPS74401 Load Transient ResponseFigure 7-4 Load Transient Response
TPS74401 VBIAS Line Transient (3A)Figure 7-6 VBIAS Line Transient (3A)
TPS74401 VIN Dropout Voltage vs IOUT and Temperature (TJ)Figure 7-8 VIN Dropout Voltage vs IOUT and Temperature (TJ)
TPS74401 VIN Dropout Voltage vs VBIAS – VOUT and Temperature (TJ)Figure 7-10 VIN Dropout Voltage vs VBIAS – VOUT and Temperature (TJ)
TPS74401 Power-Up, Power-DownFigure 7-3 Power-Up, Power-Down
TPS74401 VIN Line Transient (3A)Figure 7-5 VIN Line Transient (3A)
TPS74401 Output Short-Circuit RecoveryFigure 7-7 Output Short-Circuit Recovery
TPS74401 VIN Dropout Voltage vs VBIAS – VOUT and Temperature (TJ)Figure 7-9 VIN Dropout Voltage vs VBIAS – VOUT and Temperature (TJ)
TPS74401 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)Figure 7-11 VBIAS Dropout Voltage vs IOUT and Temperature (TJ)