SLVS876D November   2008  – November 2014 TPS54232

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Fixed-Frequency PWM Control
      2. 8.3.2  Voltage Reference (Vref)
      3. 8.3.3  Bootstrap Voltage (BOOT)
      4. 8.3.4  Enable and Adjustable Input Undervoltage Lockout (VIN UVLO)
      5. 8.3.5  Programmable Slow-Start Using SS Pin
      6. 8.3.6  Error Amplifier
      7. 8.3.7  Slope Compensation
      8. 8.3.8  Current Mode Compensation Design
      9. 8.3.9  Overcurrent Protection and Frequency Shift
      10. 8.3.10 Overvoltage Transient Protection
      11. 8.3.11 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Eco-Mode
      2. 8.4.2 Operation With VIN < 3.5 V
      3. 8.4.3 Operation With EN Control
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Switching Frequency
        2. 9.2.2.2 Output Voltage Set Point
        3. 9.2.2.3 Input Capacitors
        4. 9.2.2.4 Output Filter Components
          1. 9.2.2.4.1 Inductor Selection
          2. 9.2.2.4.2 Capacitor Selection
        5. 9.2.2.5 Compensation Components
        6. 9.2.2.6 Bootstrap Capacitor
        7. 9.2.2.7 Catch Diode
        8. 9.2.2.8 Output Voltage Limitations
        9. 9.2.2.9 Power Dissipation Estimate
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Estimated Circuit Area
    4. 11.4 Electromagnetic Interference (EMI) Considerations
  12. 12Device And Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, And Orderable Information

5 Revision History

Changes from C Revision (October 2013) to D Revision

  • Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
  • Added the Thermal Information tableGo
  • Deleted Package Dissipation Ratings tableGo
  • Changed Equation 7Go
  • Changed Equation 32Go
  • Changed Equation 33Go

Changes from B Revision (February 2011) to C Revision

  • Changed text From: "Where NC is the number of output capacitors in parallel." To: ":Where CO is the number of output capacitors in parallel." Following Equation 13Go
  • Changed Equation 26Go
  • Changed Equation 29Go
  • Changed: Switching loss: Paw = 0.5 x 10-9 x VIN2 x IOUT x Few To: Switching loss: Psw = 0.5 x 10-9 x VIN2 x IOUT x Fsw Go
  • Changed: Gate charge loss: P.C. = 22.8 x 10-9 x Few To: Gate charge loss: Pgc. = 22.8 x 10-9 x Fsw Go
  • Deleted graph "Maximum Power Dissipation vs Junction Temperature" from the Supplemental Application CurvesGo

Changes from A Revision (March 2010) to B Revision

  • Deleted feature Item: For SWIFT™ Documentation, See the TI Website at www.ti.com/swiftGo
  • Changed Figure 14 x-axis From: IO - Output Current - mA To: IO - Output Current - AGo

Changes from * Revision (November 2008) to A Revision

  • Changed Changed the ABSOLUTE MAXIMUM RATINGS table, Input Voltage - EN pin max value From: 5V to 6VGo
  • Added a new table to the Description - For additional design needsGo