ZHCSAS0L January   2005  – December 2014 LP38691 , LP38691-Q1 , LP38693 , LP38693-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 典型应用电路
  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: LP3869x
    3. 7.3 Handling Ratings: LP3869x-Q1
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Enable (EN)
      2. 8.3.2 Thermal Overload Protection (TSD)
      3. 8.3.3 Foldback Current Limiting
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable (EN)
      2. 8.4.2 Minimum Operating Input Voltage (VIN)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Reverse Voltage
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Power Dissipation and Device Operation
        2. 9.2.2.2 External Capacitors
        3. 9.2.2.3 Input Capacitor
        4. 9.2.2.4 Output Capacitor
        5. 9.2.2.5 No-Load Stability
        6. 9.2.2.6 Capacitor Characteristics
        7. 9.2.2.7 RFI/EMI Susceptibility
        8. 9.2.2.8 Output Noise
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 WSON Mounting
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 商标
    3. 12.3 静电放电警告
    4. 12.4 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

10 Power Supply Recommendations

The LP3869x is designed to operate from an input supply voltage range of 2.7 V to 10 V. The input supply should be well regulated and free of spurious noise. To ensure that the LP3869x output voltage is well regulated, the input supply should be at least VOUT + 0.5 V, or 2.7 V, whichever is higher. A minimum capacitor value of 1-μF is required to be within 1 cm of the IN pin.