SLVSCO3B August   2016  – October 2016 TPS54116-Q1

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  Bootstrap Voltage (BOOT) and Low Dropout Operation
      3. 7.3.3  Error Amplifier
      4. 7.3.4  Voltage Reference and Adjusting the Output Voltage
      5. 7.3.5  Enable and Adjusting Undervoltage Lockout
      6. 7.3.6  Soft Start and Tracking
      7. 7.3.7  Start-up into Pre-Biased Output
      8. 7.3.8  Power Good
      9. 7.3.9  Sequencing
      10. 7.3.10 Constant Switching Frequency and Timing Resistor (RT/SYNC)
      11. 7.3.11 Buck Overcurrent Protection
      12. 7.3.12 Overvoltage Transient Protection
      13. 7.3.13 VTT Sink and Source Regulator
      14. 7.3.14 VTTREF
      15. 7.3.15 Thermal Shutdown
    4. 7.4 Device Functional Modes
  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  Switching Frequency
        2. 8.2.2.2  Output Inductor Selection
        3. 8.2.2.3  Output Capacitor
        4. 8.2.2.4  Input Capacitor
        5. 8.2.2.5  Soft Start Capacitor
        6. 8.2.2.6  Undervoltage Lock Out Set Point
        7. 8.2.2.7  Bootstrap Capacitor
        8. 8.2.2.8  Power Good Pullup
        9. 8.2.2.9  ILIM Resistor
        10. 8.2.2.10 Output Voltage and Feedback Resistors Selection
        11. 8.2.2.11 Compensation
        12. 8.2.2.12 LDOIN Capacitor
        13. 8.2.2.13 VTTREF Capacitor
        14. 8.2.2.14 VTT Capacitor
      3. 8.2.3 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 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 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 TPS54116-Q1 is designed to be powered by a well regulated dc voltage between 2.95 and 6 V. The TPS54116-Q1 is a buck converter so the input supply voltage must be greater than the desired output voltage to regulate the output voltage to the desired value. If the input supply voltage is not high enough the output voltage will begin to drop. Input supply current must be appropriate for the desired output current.