SLVSBX8B May   2013  – January 2019 TPS55330

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application (Boost)
      2.      Efficiency vs Output Current
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Operation
      2. 7.3.2 Switching Frequency
      3. 7.3.3 Overcurrent Protection and Frequency Foldback
        1. 7.3.3.1 Minimum On-Time and Pulse Skipping
      4. 7.3.4 Voltage Reference and Setting Output Voltage
      5. 7.3.5 Soft-Start
      6. 7.3.6 Slope Compensation
      7. 7.3.7 Enable and Thermal Shutdown
      8. 7.3.8 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation With VI < 2.9 V (Minimum VI)
      2. 7.4.2 Operation With EN Control
      3. 7.4.3 Operation at Light Loads
  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  Selecting the Switching Frequency (R4)
        3. 8.2.2.3  Determining the Duty Cycle
        4. 8.2.2.4  Selecting the Inductor (L1)
        5. 8.2.2.5  Computing the Maximum Output Current
        6. 8.2.2.6  Selecting the Output Capacitor (C8-C10)
        7. 8.2.2.7  Selecting the Input Capacitors (C2, C7)
        8. 8.2.2.8  Setting Output Voltage (R1, R2)
        9. 8.2.2.9  Setting the Soft-start Time (C7)
        10. 8.2.2.10 Selecting the Schottky Diode (D1)
        11. 8.2.2.11 Compensating the Control Loop (R3, C4, C5)
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.6 Typical Characteristics

VIN = 5 V, TA = 25°C (unless otherwise noted)
TPS55330 G001_SLVSBD4.pngFigure 1. Error Amplifier Transconductance vs Temperature
TPS55330 G003_SLVSBD4.pngFigure 3. Feedback Voltage Reference vs Temperature
TPS55330 G005_SLVSBD4.pngFigure 5. Frequency vs FREQ Resistance
TPS55330 D006_slvsbv5.gif
TA = 25°C
Figure 7. Minimum Switching Frequency for Quick Recovery from Frequency Foldback
TPS55330 G008_SLVSBD4.pngFigure 9. COMP Clamp Voltage vs Temperature
TPS55330 G010_SLVSBD4.pngFigure 11. Enable Voltage vs Temperature
TPS55330 G012_SLVSBD4.pngFigure 13. Minimum On Time vs Temperature
TPS55330 G014_SLVSBD4.pngFigure 15. Supply Current vs Temperature
TPS55330 G002_SLVSBD4.pngFigure 2. Switch Current Limit vs Temperature
TPS55330 G004a_SLVSBD4.pngFigure 4. RDS(ON) vs Temperature
TPS55330 G006_SLVSBD4.pngFigure 6. Frequency vs Temperature
TPS55330 G007_SLVSBD4.png
Figure 8. Non-Foldback Frequency vs Foldback Frequency
TPS55330 G009_SLVSBD4.pngFigure 10. Input Voltage UVLO vs Temperature
TPS55330 G011_SLVSBD4.pngFigure 12. Maximum Duty Cycle vs Temperature
TPS55330 G013_SLVSBD4.pngFigure 14. Shutdown Current vs Temperature