SLUSFK1E January   2024  – February 2025 UCC33420

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Enable and Disable
      2. 7.3.2 Output Voltage Soft-Start
      3. 7.3.3 Output Voltage Steady-State Regulation
      4. 7.3.4 Protection Features
        1. 7.3.4.1 Input Under-Voltage and Over-Voltage Lockout
        2. 7.3.4.2 Output Under-Voltage Protection
        3. 7.3.4.3 Output Over-Voltage Protection
        4. 7.3.4.4 Over-Temperature Protection
        5. 7.3.4.5 Fault Reporting and Auto-Restart
      5. 7.3.5 VCC Load Recommended Operating Area
      6. 7.3.6 Electromagnetic Compatibility (EMC) Considerations
    4. 7.4 Device Functional Modes
  9. 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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical and Packaging Information

6.10 Typical Characteristics

UCC33420 Maximum Output Power vs Ambient Temperature : VCC = 5.0V , COUT2 = 22μF Figure 6-1 Maximum Output Power vs Ambient Temperature : VCC = 5.0V , COUT2 = 22μF
UCC33420 Maximum Output Current vs Ambient Temperature : VCC = 5.0V , COUT2 = 22μF Figure 6-3 Maximum Output Current vs Ambient Temperature : VCC = 5.0V , COUT2 = 22μF
UCC33420 Efficiency vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μFFigure 6-5 Efficiency vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μF
UCC33420 Efficiency vs Load Current (IVCC): VCC = 5.5V , TA = 25°C , COUT2 = 22μFFigure 6-7 Efficiency vs Load Current (IVCC): VCC = 5.5V , TA = 25°C , COUT2 = 22μF
UCC33420 Input Current (IVINP) vs Load Current (IVCC): VCC = 5.0V , VINP = 5.0V , COUT2 = 22μFFigure 6-9 Input Current (IVINP) vs Load Current (IVCC): VCC = 5.0V , VINP = 5.0V , COUT2 = 22μF
UCC33420 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.0V ,VINP = 5.0V , COUT2 = 22μFFigure 6-11 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.0V ,VINP = 5.0V , COUT2 = 22μF
UCC33420 Start-Up with En/FLT From Low to High: VINP = 5.0V , VCC = 5.0V , 18Ω LoadFigure 6-13 Start-Up with En/FLT From Low to High: VINP = 5.0V , VCC = 5.0V , 18Ω Load
UCC33420 Load Transient: VINP = 5.0V, VCC = 5.0V , COUT2 = 22μF , IVCC = 0mA - 300mA - 0mAFigure 6-15 Load Transient: VINP = 5.0V, VCC = 5.0V , COUT2 = 22μF , IVCC = 0mA - 300mA - 0mA
UCC33420 Auto-Restart Operation Under Short Circuit Output: VINP = 5.0VFigure 6-17 Auto-Restart Operation Under Short Circuit Output: VINP = 5.0V
UCC33420 Maximum Output Power vs Ambient Temperature : VCC = 5.5V , COUT2 = 22μFFigure 6-2 Maximum Output Power vs Ambient Temperature : VCC = 5.5V , COUT2 = 22μF
UCC33420 Maximum Output Current vs Ambient Temperature : VCC = 5.5V , COUT2 = 22μF Figure 6-4 Maximum Output Current vs Ambient Temperature : VCC = 5.5V , COUT2 = 22μF
UCC33420 Efficiency vs Load Current (IVCC): VCC = 5.0V , VINP = 5.0V , COUT2 = 22μFFigure 6-6 Efficiency vs Load Current (IVCC): VCC = 5.0V , VINP = 5.0V , COUT2 = 22μF
UCC33420 Input Current (IVINP) vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μFFigure 6-8 Input Current (IVINP) vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μF
UCC33420 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μFFigure 6-10 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.0V , TA = 25°C , COUT2 = 22μF
UCC33420 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.5V , TA = 25°C , COUT2 = 22μFFigure 6-12 Output Voltage Regulation (VVCC) vs Load Current (IVCC): VCC = 5.5V , TA = 25°C , COUT2 = 22μF
UCC33420 Steady State Output Voltage Ripple: VINP = 5.0V , VCC = 5.0V , 300mA LoadFigure 6-14 Steady State Output Voltage Ripple: VINP = 5.0V , VCC = 5.0V , 300mA Load
UCC33420 Output Short Circuit Operation: VINP = 5.0VFigure 6-16 Output Short Circuit Operation: VINP = 5.0V