SLVSB56C May   2012  – February 2014

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Terminal 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 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  Slope Compensation Output Current
      3. 8.3.3  Pulse Skip Eco-mode
      4. 8.3.4  Bootstrap Voltage (BOOT)
      5. 8.3.5  Low Dropout Operation
      6. 8.3.6  Error Amplifier
      7. 8.3.7  Voltage Reference
      8. 8.3.8  Adjusting the Output Voltage
      9. 8.3.9  Enable and Adjusting Undervoltage Lockout
      10. 8.3.10 Slow Start and Tracking Pin (SS/TR)
      11. 8.3.11 Overload Recovery Circuit
      12. 8.3.12 Sequencing
      13. 8.3.13 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
      14. 8.3.14 Overcurrent Protection and Frequency Shift
      15. 8.3.15 Selecting the Switching Frequency
      16. 8.3.16 How to Interface to RT/CLK Pin
      17. 8.3.17 Power Good (PWRGD Pin)
      18. 8.3.18 Overvoltage Transient Protection
      19. 8.3.19 Thermal Shutdown
      20. 8.3.20 Small Signal Model for Loop Response
      21. 8.3.21 Simple Small Signal Model for Peak Current Mode Control
      22. 8.3.22 Small Signal Model for Frequency Compensation
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation with VIN < 3.5 V (Minimum VIN)
      2. 8.4.2 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 Procedures
        1. 9.2.2.1  Selecting the Switching Frequency
        2. 9.2.2.2  Output Inductor Selection (LO)
        3. 9.2.2.3  Output Capacitor
        4. 9.2.2.4  Catch Diode
        5. 9.2.2.5  Input Capacitor
        6. 9.2.2.6  Slow Start Capacitor
        7. 9.2.2.7  Bootstrap Capacitor Selection
        8. 9.2.2.8  Under Voltage Lock Out Set Point
        9. 9.2.2.9  Output Voltage and Feedback Resistors Selection
        10. 9.2.2.10 Compensation
        11. 9.2.2.11 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
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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