ZHCSQQ5D January   2006  – June 2022

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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 — TL2575
    6. 6.6 Electrical Characteristics — TL2575HV
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Circuits
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Feedback Connection
      2. 8.3.2 ON/OFF Input
    4. 8.4 Device Functional Modes
      1. 8.4.1 Standby Mode
  9. 9 Application and Implementation
    1. 9.1 Typical Application
      1. 9.1.1 Design Requirements
      2. 9.1.2 Detailed Design Procedure
        1. 9.1.2.1 Input Capacitor (CIN)
        2. 9.1.2.2 Output Capacitor (COUT)
        3. 9.1.2.3 Catch Diode
        4. 9.1.2.4 Inductor
        5. 9.1.2.5 Output Voltage Ripple and Transients
        6. 9.1.2.6 Grounding
        7. 9.1.2.7 Reverse Current Considerations
        8. 9.1.2.8 Buck Regulator Design Procedure
        9. 9.1.2.9 Inductor Selection Guide
      3. 9.1.3 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 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 静电放电警告
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Package Option Addendum

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

9.1.2.3 Catch Diode

As with other external components, the catch diode should be placed close to the output to minimize unwanted noise. Schottky diodes have fast switching speeds and low forward voltage drops and, thus, offer the best performance, especially for switching regulators with low output voltages (VOUT < 5 V). If a high-efficiency, fast-recovery, or ultra-fast-recovery diode is used in place of a Schottky, it should have a soft recovery (versus abrupt turn-off characteristics) to avoid the chance of causing instability and EMI. Standard 50- to 60-Hz diodes, such as the 1N4001 or 1N5400 series, are not suitable.