ZHCSF74A March   2016  – July 2016 TPS7A87

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 ESD Ratings
   3. 6.3 Recommended Operating Conditions
   4. 6.4 Thermal Information
   5. 6.5 Electrical Characteristics
   6. 6.6 Typical Characteristics
7. 7 Detailed Description
   1. 7.1 Overview
   2. 7.2 Functional Block Diagram
   3. 7.3 Feature Description
      1. 7.3.1 Voltage Regulation Features
         1. 7.3.1.1 DC Regulation
         2. 7.3.1.2 AC and Transient Response
      2. 7.3.2 System Start-Up Features
         1. 7.3.2.1 Programmable Soft-Start (NR/SSx)
         2. 7.3.2.2 Sequencing
            1. 7.3.2.2.1 Enable (ENx)
            2. 7.3.2.2.2 Undervoltage Lockout (UVLOx) Control
            3. 7.3.2.2.3 Active Discharge
         3. 7.3.2.3 Power-Good Output (PGx)
      3. 7.3.3 Internal Protection Features
         1. 7.3.3.1 Foldback Current Limit (ICLx)
         2. 7.3.3.2 Thermal Protection (Tsdx)
   4. 7.4 Device Functional Modes
      1. 7.4.1 Regulation
      2. 7.4.2 Disabled
8. 8 Application and Implementation
   1. 8.1 Application Information
      1. 8.1.1 External Component Selection
         1. 8.1.1.1 Setting the Output Voltage (Adjustable Operation)
         2. 8.1.1.2 Capacitor Recommendations
         3. 8.1.1.3 Input and Output Capacitor (CINx and COUTx)
         4. 8.1.1.4 Feed-Forward Capacitor (CFFx)
         5. 8.1.1.5 Noise-Reduction and Soft-Start Capacitor (CNR/SSx)
      2. 8.1.2 Start-Up
         1. 8.1.2.1 Circuit Soft-Start Control (NR/SSx)
            1. 8.1.2.1.1 In-Rush Current
         2. 8.1.2.2 Undervoltage Lockout (UVLOx) Control
         3. 8.1.2.3 Power-Good (PGx) Function
      3. 8.1.3 AC and Transient Performance
         1. 8.1.3.1 Power-Supply Rejection Ratio (PSRR)
         2. 8.1.3.2 Channel-to-Channel Output Isolation and Crosstalk
         3. 8.1.3.3 Output Voltage Noise
         4. 8.1.3.4 Optimizing Noise and PSRR
            1. 8.1.3.4.1 Charge Pump Noise
         5. 8.1.3.5 Load Transient Response
      4. 8.1.4 DC Performance
         1. 8.1.4.1 Output Voltage Accuracy (VOUTx)
         2. 8.1.4.2 Dropout Voltage (VDO)
            1. 8.1.4.2.1 Behavior when Transitioning from Dropout into Regulation
      5. 8.1.5 Reverse Current Protection
      6. 8.1.6 Power Dissipation (PD)
         1. 8.1.6.1 Estimating Junction Temperature
         2. 8.1.6.2 Recommended Area for Continuous Operation (RACO)
   2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
9. 9 Power Supply Recommendations
10. 10Layout
    1. 10.1 Layout Guidelines
       1. 10.1.1 Board Layout
    2. 10.2 Layout Example
11. 11器件和文档支持
    1. 11.1 器件支持
       1. 11.1.1 开发支持
          1. 11.1.1.1 评估模块
          2. 11.1.1.2 SPICE 模型
       2. 11.1.2 器件命名规则
    2. 11.2 文档支持
       1. 11.2.1 相关文档　
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 Glossary
12. 12机械、封装和可订购信息