SLVS752D November   2007  – April 2026 TPS5420-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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 Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Oscillator Frequency
      2. 6.3.2  Voltage Reference
      3. 6.3.3  Enable (ENA) and Internal Slow Start
      4. 6.3.4  Undervoltage Lockout (UVLO)
      5. 6.3.5  Boost Capacitor (BOOT)
      6. 6.3.6  Output Feedback (VSENSE)
      7. 6.3.7  Internal Compensation
      8. 6.3.8  Voltage Feed Forward
      9. 6.3.9  Pulse-Width-Modulation (PWM) Control
      10. 6.3.10 Overcurrent Limiting
      11. 6.3.11 Overvoltage Protection (OVP)
      12. 6.3.12 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Minimum Input Voltage
      2. 6.4.2 ENA Control
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Application Circuits
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1  Custom Design With WEBENCH® Tools
          2. 7.2.1.2.2  Switching Frequency
          3. 7.2.1.2.3  Input Capacitors
          4. 7.2.1.2.4  Output Filter Components
            1. 7.2.1.2.4.1 Inductor Selection
            2. 7.2.1.2.4.2 Capacitor Selection
            3.         44
            4.         45
          5. 7.2.1.2.5  Output Voltage Setpoint
          6. 7.2.1.2.6  Boot Capacitor
          7. 7.2.1.2.7  Catch Diode
          8. 7.2.1.2.8  Output Filter Component Selection
          9. 7.2.1.2.9  External Compensation Network
          10. 7.2.1.2.10 Advanced Information
            1. 7.2.1.2.10.1 Output Voltage Limitations
            2. 7.2.1.2.10.2 Internal Compensation Network
            3. 7.2.1.2.10.3 Thermal Calculations
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Additional Circuits
      3. 7.2.3 Circuit Using Ceramic Output Filter Capacitors
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 PCB Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

9 Revision History

Changes from Revision C (January 2024) to Revision D (April 2026)

  • Updated the document title to include automotive specificationGo
  • Deleted out of date SWIFT documentation link in the Features Go
  • Added WEBENCH link to the Features Go
  • Updated ENA pin description by adding information about internal 1.5MΩ pullup resistor in Pin Configuration and Functions Go
  • Added table note 3 in Absolute Maximum Ratings sectionGo
  • Added table note 3 in Thermal Information sectionGo
  • Updated the Detailed Description section to comply with current standardsGo
  • Added the Overview sectionGo
  • Deleted the 5uA current source and added a 1.5MΩ pullup resistor in the functional block diagramGo
  • Updated Enable (ENA) and Internal Slow Start section by deleting current information and adding internal 1.5MΩ pullup resistor informationGo
  • Added the Device Functional Modes sectionGo
  • Added the Application and Implementation section to comply with current standardsGo
  • Added the Application Information sectionGo
  • Added Custom Design With WEBENCH® Tools sectionGo
  • Added the Power Supply Recommendations sectionGo
  • Added Custom Design With WEBENCH® Tools sectionGo

Changes from Revision B (June 2008) to Revision C (January 2024)

  • Updated the numbering format for tables, figures, and cross-references throughout the documentGo
  • Updated to new format which does not include specific parameter names and does include min and max columns. TJ called out in header. Pin names are used rather than signal names. BOOT and PH voltages now marked as output voltage. Footnotes updated and Note 2 removed. ESD specifications moved to separate table.Go
  • Deleted Absolute Maximum BOOT to GND maximum voltageGo
  • Added separate ESD tableGo
  • Added CDM ESD rating, Deleted MMGo
  • Added Recommended operating VI input voltageGo
  • Updated Dissipation Ratings table with more detailed Thermal Information tableGo
  • Added condition for typical specifications EC table’s header, added parameter names, and used pin names in parameter descriptions.  Footnote added.Go
  • Reduced the following typical specifications in the EC table: IQ(VIN), ISD(VIN), VINUVLO(H), VEN(H), and RDSON(HS).Go