SLUSC26A May   2015  – February 2016 TPS54334

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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  Fixed Frequency PWM Control
      2. 7.3.2  Light Load Operation
      3. 7.3.3  Slope Compensation and Output Current
      4. 7.3.4  Bootstrap Voltage (BOOT) and Low Dropout Operation
      5. 7.3.5  Error Amplifier
      6. 7.3.6  Voltage Reference
      7. 7.3.7  Adjusting the Output Voltage
      8. 7.3.8  Enable and Undervoltage Lockout
      9. 7.3.9  Slow Start
      10. 7.3.10 Safe Start-up into Pre-Biased Outputs
      11. 7.3.11 Power Good (PGOOD)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Overcurrent/Overvoltage/Thermal Protection
      2. 7.4.2 Thermal Shutdown
      3. 7.4.3 Small Signal Model for Loop Response
      4. 7.4.4 Small Signal Model for Peak Current Mode Control
      5. 7.4.5 Small Signal Model for Frequency Compensation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 TPS54334 Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Switching Frequency
          2. 8.2.1.2.2 Output Voltage Set Point
          3. 8.2.1.2.3 Undervoltage Lockout Set Point
          4. 8.2.1.2.4 Input Capacitors
          5. 8.2.1.2.5 Output Filter Components
            1. 8.2.1.2.5.1 Inductor Selection
            2. 8.2.1.2.5.2 Capacitor Selection
          6. 8.2.1.2.6 Compensation Components
          7. 8.2.1.2.7 Bootstrap Capacitor
          8. 8.2.1.2.8 Power Dissipation Estimate
        3. 8.2.1.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    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

9 Power Supply Recommendations

The devices are designed to operate from an input supply ranging from 4.2 V to 28 V. The input supply should be well regulated. If the input supply is located more than a few inches from the converter an additional bulk capacitance, typically 100 μF, may be required in addition to the ceramic bypass capacitors.