ZHCSKH2 November   2019 TPS7A52

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

1. 1 特性
2. 2 應(yīng)用
3. 3 說明
   1.     Device Images
      1.      為射頻組件供電
      2.      為數(shù)字負(fù)載供電
4. 4 修訂歷史記錄
5. 5 Pin Configuration and Functions
   1.     Pin 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
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/SS Pin)
         2. 7.3.2.2 Internal Sequencing
            1. 7.3.2.2.1 Enable (EN)
            2. 7.3.2.2.2 Undervoltage Lockout (UVLO) Control
            3. 7.3.2.2.3 Active Discharge
         3. 7.3.2.3 Power-Good Output (PG)
      3. 7.3.3 Internal Protection Features
         1. 7.3.3.1 Foldback Current Limit (ICL)
         2. 7.3.3.2 Thermal Protection (Tsd)
   4. 7.4 Device Functional Modes
      1. 7.4.1 Regulation
      2. 7.4.2 Disabled
      3. 7.4.3 Current Limit Operation
8. 8 Application and Implementation
   1. 8.1 Application Information
      1. 8.1.1  Recommended Capacitor Types
         1. 8.1.1.1 Input and Output Capacitor Requirements (CIN and COUT)
         2. 8.1.1.2 Noise-Reduction and Soft-Start Capacitor (CNR/SS)
         3. 8.1.1.3 Feed-Forward Capacitor (CFF)
      2. 8.1.2  Soft Start and Inrush Current
      3. 8.1.3  Optimizing Noise and PSRR
      4. 8.1.4  Charge Pump Noise
      5. 8.1.5  Current Sharing
      6. 8.1.6  Adjustable Operation
      7. 8.1.7  Power-Good Operation
      8. 8.1.8  Undervoltage Lockout (UVLO) Operation
      9. 8.1.9  Dropout Voltage (VDO)
      10. 8.1.10 Device Behavior During Transition From Dropout Into Regulation
      11. 8.1.11 Load Transient Response
      12. 8.1.12 Reverse Current Protection Considerations
      13. 8.1.13 Power Dissipation (PD)
      14. 8.1.14 Estimating Junction Temperature
   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器件和文檔支持
    1. 11.1 器件支持
       1. 11.1.1 開發(fā)支持
          1. 11.1.1.1 參考設(shè)計(jì)
       2. 11.1.2 器件命名規(guī)則
    2. 11.2 文檔支持
       1. 11.2.1 相關(guān)文檔
    3. 11.3 接收文檔更新通知
    4. 11.4 社區(qū)資源
    5. 11.5 商標(biāo)
    6. 11.6 靜電放電警告
    7. 11.7 Glossary
12. 12機(jī)械、封裝和可訂購信息