ZHCSDR7 May   2015 TPS54334

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 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  Fixed Frequency PWM Control
      2. 8.3.2  Light Load Operation
      3. 8.3.3  Slope Compensation and Output Current
      4. 8.3.4  Bootstrap Voltage (BOOT) and Low Dropout Operation
      5. 8.3.5  Error Amplifier
      6. 8.3.6  Voltage Reference
      7. 8.3.7  Adjusting the Output Voltage
      8. 8.3.8  Enable and Undervoltage Lockout
      9. 8.3.9  Slow Start
      10. 8.3.10 Safe Start-up into Pre-Biased Outputs
      11. 8.3.11 Power Good (PGOOD)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Overcurrent/Overvoltage/Thermal Protection
      2. 8.4.2 Thermal Shutdown
      3. 8.4.3 Small Signal Model for Loop Response
      4. 8.4.4 Small Signal Model for Peak Current Mode Control
      5. 8.4.5 Small Signal Model for Frequency Compensation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPS54334 Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Switching Frequency
          2. 9.2.1.2.2 Output Voltage Set Point
          3. 9.2.1.2.3 Undervoltage Lockout Set Point
          4. 9.2.1.2.4 Input Capacitors
          5. 9.2.1.2.5 Output Filter Components
            1. 9.2.1.2.5.1 Inductor Selection
            2. 9.2.1.2.5.2 Capacitor Selection
          6. 9.2.1.2.6 Compensation Components
          7. 9.2.1.2.7 Bootstrap Capacitor
          8. 9.2.1.2.8 Power Dissipation Estimate
        3. 9.2.1.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 开发支持
    2. 12.2 文档支持
      1. 12.2.1 相关文档　
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  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

12 器件和文档支持

12.1 器件支持

12.1.1 开发支持

如需 WEBENCH 电路设计和选择仿真服务，请访问：www.ti.com/WEBENCH。

12.2 文档支持

12.2.1 相关文档　

相关文档如下：

《设计电流模式降压转换器的第 III 类补偿》（文献编号：SLVA352）

12.3 社区资源

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

12.4 商标

PowerPAD, Eco-mode, E2E are trademarks of Texas Instruments.

WEBENCH is a registered trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

12.5 静电放电警告

esds-image

这些装置包含有限的内置 ESD 保护。 存储或装卸时，应将导线一起截短或将装置放置于导电泡棉中，以防止 MOS 门极遭受静电损伤。

12.6 术语表

SLYZ022 — TI 术语表。

这份术语表列出并解释术语、首字母缩略词和定义。