ZHCSD25 October   2014 LP3990-Q1

PRODUCTION DATA.  

1. 1 特性
2. 2 应用
3. 3 说明
4. 4 修订历史记录
5. 5 Pin Configuration and Functions
6. 6 Specifications
   1. 6.1 Absolute Maximum Ratings
   2. 6.2 Handling Ratings
   3. 6.3 Recommended Operating Conditions
   4. 6.4 Thermal Information
   5. 6.5 Electrical Characteristics
   6. 6.6 Output Capacitor, Recommended Specifications
   7. 6.7 Timing Requirements
   8. 6.8 Typical Performance Characteristics
7. 7 Detailed Description
   1. 7.1 Overview
   2. 7.2 Functional Block Diagram
   3. 7.3 Feature Description
      1. 7.3.1 Enable (EN)
      2. 7.3.2 Thermal Overload Protection (TSD)
   4. 7.4 Device Functional Modes
      1. 7.4.1 Enable (EN)
      2. 7.4.2 Minimum Operating Input Voltage (VIN)
8. 8 Application and Implementation
   1. 8.1 Application Information
   2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
         1. 8.2.2.1 Power Dissipation and Device Operation
         2. 8.2.2.2 External Capacitors
         3. 8.2.2.3 Input Capacitor
         4. 8.2.2.4 Output Capacitor
         5. 8.2.2.5 No-Load Stability
         6. 8.2.2.6 Capacitor Characteristics
         7. 8.2.2.7 Enable Control
      3. 8.2.3 Application Curves
9. 9 Power Supply Recommendations
10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 DSBGA Mounting
    4. 10.4 DSBGA Light Sensitivity
11. 11器件和文档支持
    1. 11.1 文档支持
       1. 11.1.1 相关文档　
    2. 11.2 商标
    3. 11.3 静电放电警告
    4. 11.4 术语表
12. 12机械封装和可订购信息