ZHCSAP1D December   2012  – September 2014 TPS43060 , TPS43061

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Pin Configuration 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 Characteristics
    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  Switching Frequency
      2. 8.3.2  Low-Dropout Regulator
      3. 8.3.3  Input Undervoltage (UV)
      4. 8.3.4  Enable and Adjustable UVLO
      5. 8.3.5  Voltage Reference and Setting Output Voltage
      6. 8.3.6  Minimum On-Time and Pulse Skipping
      7. 8.3.7  Zero-Cross Detection and Duty Cycle
      8. 8.3.8  Minimum Off-Time and Maximum Duty Cycle
      9. 8.3.9  Soft-Start
      10. 8.3.10 Power Good
      11. 8.3.11 Overvoltage Protection (OVP)
      12. 8.3.12 OVP and Current Sense Resistor Selection
      13. 8.3.13 Gate Drivers
      14. 8.3.14 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Typical Operation (VIN < VOUT)
      2. 8.4.2 Pass Through (VIN > VOUT)
      3. 8.4.3 Split-Rail Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Synchronous Boost Converter Typical Application Using TPS43061
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1  Selecting the Switching Frequency
          2. 9.2.1.2.2  Inductor Selection
          3. 9.2.1.2.3  Selecting the Current Sense Resistor
          4. 9.2.1.2.4  Output Capacitor Selection
          5. 9.2.1.2.5  MOSFET Selection - NexFET Power Block
          6. 9.2.1.2.6  Bootstrap Capacitor Selection
          7. 9.2.1.2.7  VCC Capacitor
          8. 9.2.1.2.8  Input Capacitor
          9. 9.2.1.2.9  Output Voltage and Feedback Resistors Selection
          10. 9.2.1.2.10 Setting the Soft-Start Time
          11. 9.2.1.2.11 UVLO Set Point
          12. 9.2.1.2.12 Power Good Resistor Selection
          13. 9.2.1.2.13 Control Loop Compensation
          14. 9.2.1.2.14 DCM, Pulse-Skip Mode, and No-Load Input Current
        3. 9.2.1.3 Application Curves
      2. 9.2.2 High-Efficiency 40-V Synchronous Boost Converter Typical Application Using TPS43060
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 相关链接
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

10 Power Supply Recommendations

The device is designed to operate from an input voltage supply range between 4.5 and 38 V. This input supply should be well regulated. It is important to remember a boost topology requires an input current greater than the output current. The power supply must then be capable of supporting a current approximately equal to IOUT × VOUT / (VIN). If the input supply is located more than a few inches from the TPS4306x 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.

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