ZHCSEJ1 December   2015 TPS7H3301-SP

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 说明 （续）
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VO Sink/Source Regulator
      2. 8.3.2 Reference Input (VDDQSNS)
      3. 8.3.3 Reference Output (VTTREF)
      4. 8.3.4 EN ControL (EN)
      5. 8.3.5 PowerGood Function (PGOOD)
      6. 8.3.6 VO Current Protection
      7. 8.3.7 VIN UVLO Protection
      8. 8.3.8 Thermal Shutdown
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 VIN/VDD Capacitor
        2. 9.2.2.2 VLDO Input Capacitor
        3. 9.2.2.3 VTT Output Capacitor
        4. 9.2.2.4 VTTSNS Connection
        5. 9.2.2.5 Low VIN Applications
        6. 9.2.2.6 S3 and Pseudo-S5 Support
        7. 9.2.2.7 Tracking Startup and Shutdown
        8. 9.2.2.8 Output Tolerance Consideration for VTT DIMM Applications
        9. 9.2.2.9 LDO Design Guidelines
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 社区资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  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

TPS7H3301-SP is designed to support DDR, DDR2, DDR3, DDR3L, and DDR4 VTT applications. TPS7H3301-SP VLDOIN supports voltage range from 0.9 V to 3.5 V. The supply must be well regulated. Having a separate VLDOIN and VDDQSNS allows designer to optimize system efficiency. Vin/VDD is used to bias the TPS7H3301-SP IC and its voltage range is from 2.375 V to 3.5 V. This supply must be well regulated and bypassed with a ceramic capacitor with a value of 1 µF and 10 µF. TI recommends that VLDOIN and VDDQSNS be isolated from each other. If this is not possible then an RC filter must be used to isolated VLDOIN and VDDQNSS. However, in so doing the dynamic tracking of VTT and VTTREF will be lost. See the user's guide SLVUAK2 for additional details.
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