ZHCSPP3 July   2022 TPS563300

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  Fixed Frequency Peak Current Mode
      2. 7.3.2  Pulse Frequency Modulation
      3. 7.3.3  Voltage Reference
      4. 7.3.4  Output Voltage Setting
      5. 7.3.5  Enable and Adjusting Undervoltage Lockout
      6. 7.3.6  Minimum On Time, Minimum Off Time, and Frequency Foldback
      7. 7.3.7  Frequency Spread Spectrum
      8. 7.3.8  Overvoltage Protection
      9. 7.3.9  Overcurrent and Undervoltage Protection
      10. 7.3.10 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Modes Overview
      2. 7.4.2 Heavy Load Operation
      3. 7.4.3 Light-Load Operation
      4. 7.4.4 Dropout Operation
      5. 7.4.5 Minimum On-Time Operation
      6. 7.4.6 Shutdown Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Bootstrap Capacitor Selection
        4. 8.2.2.4 Undervoltage Lockout Set Point
        5. 8.2.2.5 Output Inductor Selection
        6. 8.2.2.6 Output Capacitor Selection
        7. 8.2.2.7 Input Capacitor Selection
        8. 8.2.2.8 Feedforward Capacitor CFF Selection
        9. 8.2.2.9 Maximum Ambient Temperature
      3. 8.2.3 Application Curves
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方产品免责声明
      2. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
    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

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6.6 Typical Characteristics

TJ = –40°C to 150°C, VIN = 12 V, unless otherwise noted

Figure 6-1 Shutdown Current vs Junction Temperature
Figure 6-3 Low-Side RDSON vs Junction Temperature
Figure 6-5 Enable Threshold vs Junction Temperature
Figure 6-7 VIN UVLO Rising Threshold vs Junction Temperature
Figure 6-9 Switching Frequency vs Junction Temperature
Figure 6-11 Low-Side Current Limit vs Junction Temperature
Figure 6-13 UVP Threshold vs Junction Temperature
Figure 6-15 Efficiency, VOUT = 12 V , fSW = 500 kHz, L = 12 µH
Figure 6-17 Load Regulation, VOUT = 12 V,
fSW = 500 kHz
Figure 6-19 Line Regulation, VOUT = 12 V,
fSW = 500 kHz
Figure 6-2 High-Side RDSON vs Junction Temperature
Figure 6-4 Feedback Voltage vs Junction Temperature
Figure 6-6 Disable Threshold vs Junction Temperature
Figure 6-8 VIN UVLO Falling Threshold vs Junction Temperature
Figure 6-10 High-Side Current Limit vs Junction Temperature
Figure 6-12 OVP Threshold vs Junction Temperature
Figure 6-14 Efficiency, VOUT = 3.3 V, fSW = 500 kHz, L = 4.7 µH
Figure 6-16 Load Regulation, VOUT = 3.3 V,
fSW = 500 kHz
Figure 6-18 Line Regulation, VOUT = 3.3 V,
fSW = 500 kHz
Figure 6-20 Switching Frequency vs Load Current, VOUT = 3.3 V