SLVS887C April   2009  – August 2014 TPS53114

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematics
  5. 5 Revision History
  6. 6 Pin Configurations 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 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 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  PWM Operation
      2. 8.3.2  Drivers
      3. 8.3.3  PWM Frequency and Adaptive On-time Control
      4. 8.3.4  5-Volt Regulator
      5. 8.3.5  Soft Start
      6. 8.3.6  Pre-bias Support
      7. 8.3.7  Switching Frequency Selection
      8. 8.3.8  Output Discharge Control
      9. 8.3.9  Over Current Protection
      10. 8.3.10 Over/under Voltage Protection
      11. 8.3.11 UVLO Protection
      12. 8.3.12 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 350-kHz Operation Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Choose Inductor
        2. 9.2.2.2 Choose Output Capacitor
        3. 9.2.2.3 Choose Input Capacitor
        4. 9.2.2.4 Choose Bootstrap Capacitor
        5. 9.2.2.5 Choose VREG5 and V5FILT Capacitors
        6. 9.2.2.6 Choose Output Voltage Set Point Resistors
        7. 9.2.2.7 Choose Over Current Set Point Resistor From: IOCL + To: IOCL - minus VOCLoff
        8. 9.2.2.8 Choose Soft Start Capacitor
        9. 9.2.2.9 Choose Package Option
      3. 9.2.3 350 kHz Application Curves
    3. 9.3 700 kHz Operation Application
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 700 kHz 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 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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订购信息

10 Power Supply Recommendations

The TPS53114 is designed to operate from an input voltage supply range between 4.5 V and 24 V. This input supply must be well regulated. If the input supply is located more than a few inches from the TPS53114 device additional 0.1 µF ceramic capacitance may be required in addition to the ceramic bypass capacitors, 10 µF.