JAJSLJ7A May   2021  – August 2021 TPS6521855

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     4
  4. 4 Revision History
  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 Timing Requirements
    7. 6.7 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 Wake-Up and Power-Up and Power-Down Sequencing
        1. 7.3.1.1  Power-Up Sequencing
        2. 7.3.1.2  Power-Down Sequencing
        3. 7.3.1.3  Strobe 1 and Strobe 2
        4. 7.3.1.4  Supply Voltage Supervisor and Power-Good (PGOOD)
        5. 7.3.1.5  Internal LDO (INT_LDO)
        6. 7.3.1.6  Current Limited Load Switches
          1. 7.3.1.6.1 Load Switch 1 (LS1)
          2. 7.3.1.6.2 Load Switch 2 (LS2)
          3. 7.3.1.6.3 Load Switch 3 (LS3)
        7. 7.3.1.7  LDO1
        8. 7.3.1.8  UVLO
        9. 7.3.1.9  Power-Fail Comparator
        10. 7.3.1.10 DCDC3 and DCDC4 Power-Up Default Selection
        11. 7.3.1.11 I/O Configuration
          1. 7.3.1.11.1 Using GPIO3 as Reset Signal to DCDC1 and DCDC2
        12. 7.3.1.12 Push Button Input (PB)
          1. 7.3.1.12.1 Signaling PB-Low Event on the nWAKEUP Pin
          2. 7.3.1.12.2 Push Button Reset
        13. 7.3.1.13 AC_DET Input (AC_DET)
        14. 7.3.1.14 Interrupt Pin (INT)
        15. 7.3.1.15 I2C Bus Operation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Modes of Operation
      2. 7.4.2 OFF
      3. 7.4.3 ACTIVE
      4. 7.4.4 SUSPEND
      5. 7.4.5 RESET
    5. 7.5 Register Maps
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Applications Without Backup Battery
      2. 8.1.2 Applications Without Battery Backup Supplies
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Output Filter Design
        2. 8.2.2.2 Inductor Selection for Buck Converters
        3. 8.2.2.3 Output Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 サポート・リソース
    4. 11.4 Trademarks
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 用語集
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Package Option Addendum
      1. 12.1.1 Packaging Information
      2. 12.1.2 Tape and Reel Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報
7.3.1.6.1 Load Switch 1 (LS1)

LS1 is a non-reverse blocking, low-voltage (< 3.6 V), low-impedance switch intended to support DDRx self-refresh mode by cutting off the DDRx supply to the SOC DDRx interface during SUSPEND mode. In a typical application, the input of LS1 is tied to the output of DCDC3 while the output of LS1 is connected to the memory-interface supply pin of the SOC. LS1 can be controlled by the internal sequencer, just as any power rail.

GUID-D98F306D-CDE5-448E-A2D9-3513933ABB64-low.gifFigure 7-10 Typical Application of Load Switch 1