SLVS847A November   2008  – December 2016 TPS54917

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD 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  Undervoltage Lockout (UVLO)
      2. 8.3.2  Slow Start or Enable (SS/ENA)
      3. 8.3.3  VBIAS Regulator (VBIAS)
      4. 8.3.4  Voltage Reference
      5. 8.3.5  Oscillator and PWM Ramp
      6. 8.3.6  Error Amplifier
      7. 8.3.7  PWM Control
      8. 8.3.8  Dead-Time Control and MOSFET Drivers
      9. 8.3.9  Overcurrent Protection
      10. 8.3.10 Thermal Shutdown
      11. 8.3.11 Power Good (PWRGD)
    4. 8.4 Device Functional Modes
      1. 8.4.1 PWM Operation
      2. 8.4.2 Standby Operation
  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 Procedure
        1. 9.2.2.1 Component Selection
        2. 9.2.2.2 Input Filter
        3. 9.2.2.3 Feedback Circuit
        4. 9.2.2.4 Operating Frequency
        5. 9.2.2.5 Output Filter
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Estimated Circuit Area
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Developmental Support
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

10 Power Supply Recommendations

The device is designed to operate from an input-voltage supply range between 3 V and 4 V. This input supply must be well regulated. If the input supply is placed more than a few inches from the converter, additional bulk capacitance may be required in addition to the ceramic bypass capacitors. An electrolytic capacitor with a value of 100 µF is a typical choice.