JAJSLJ1B September   2015  – March 2021 TPS62748

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Timing Requirements
    7. 7.7 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 DCS-Control™
      2. 8.3.2 Power Save Mode Operation
      3. 8.3.3 100mA Load Switch
      4. 8.3.4 Output Voltage Selection
      5. 8.3.5 Output Voltage Discharge of the Buck Converter
      6. 8.3.6 Undervoltage Lockout UVLO
      7. 8.3.7 Short circuit protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Shutdown
      2. 8.4.2 Device Start-up and Softstart
      3. 8.4.3 Automatic Transition Into No Ripple 100% Mode
  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 Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 サード・パーティ製品に関する免責事項
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 用語集
  13. 13Mechanical, Packaging, and Orderable 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

9.2.3 Application Curves

GUID-ED0B8D06-5820-49D6-9EA0-19CA60715892-low.gif
TPS62743
Figure 9-2 Efficiency vs Load Current, VOUT = 3.3 V
GUID-474D840D-0951-4627-94E8-15483F9781CA-low.gif
TPS627431
Figure 9-4 Efficiency vs Load Current; VOUT = 1.9 V
GUID-56B7CCD4-29F7-4907-BBFB-29496D27591A-low.gif
TPS627431
Figure 9-6 Efficiency vs Load Current; VOUT = 1.4 V
GUID-A89EE027-7862-478B-8444-C6DB718BF9D3-low.gif
TPS62743
Figure 9-8 Efficiency vs Load Current; VOUT = 1.8 V
GUID-3655669F-775C-4683-9E3D-62A57F575FD4-low.gif
TPS62743
Figure 9-10 Switching Frequency vs Load Current VOUT = 1.8 V
GUID-D7939FF1-C429-46B4-8264-18DAA86EEE9F-low.gif
TPS62743
Figure 9-12 Switching Frequency vs Load Current VOUT = 1.2 V
GUID-D7C7E0D4-D0BF-4D09-9267-565A0AC48DAC-low.gif
Figure 9-14 PFM (Power Save Mode) Mode Operation
GUID-E6D682CE-2C90-4472-BC8B-0A0CF8DDE71E-low.gif
Figure 9-16 Startup Into 100 mA Electronic Load EN Delay + Soft-Start Delay
GUID-EE4D438C-A777-4893-A6EB-98E233191647-low.gif
Figure 9-18 Load Transient Response; 100 mA to 290 mA
GUID-648EA7C1-E758-4650-B09D-16C3C9ECFE69-low.gif
Figure 9-20 100% Mode Entry and Leave Operation IOUT = 30 mA
GUID-6AF5228A-3002-4844-AA7D-D24CEC631506-low.gif
TPS62743
Figure 9-3 Efficiency vs Load Current; VOUT = 2.1 V
GUID-58754E75-7C39-483F-9EA9-D42E72AE13C5-low.gif
TPS62743
Figure 9-5 Efficiency vs Load Current; VOUT = 1.8 V
GUID-382DDEF4-91E4-4DE3-B72B-A757196AAA47-low.gif
TPS62743
Figure 9-7 Efficiency vs Load Current; VOUT = 1.2 V
GUID-CF4B9FC8-AF23-4C9E-BB67-0D29BCC10A29-low.gif
TPS62743
Figure 9-9 Switching Frequency vs Load Current VOUT = 3.3 V
GUID-509A2014-97BC-4451-8F81-F7A1F2C5EDE6-low.gif
TPS627431
Figure 9-11 Switching Frequency vs Load Current VOUT = 1.4 V
GUID-89FBA4F7-F72D-4291-ABE7-502EF0FA6A63-low.gif
TPS627431VOUT = 1.4V
L = 2.2µHCOUT = 10µF (0402)
Figure 9-13 Typical Output Ripple Voltage VOUT = 1.4V
GUID-23480AB4-9713-4A55-B3F6-59D34AD31535-low.gif
Figure 9-15 PWM Mode Operation
GUID-0E4155EE-46C6-4308-ABDA-6B747EB0306D-low.gif
Figure 9-17 Startup Into 300 mA Electronic Load Soft-Start Delay
GUID-F49D832E-049D-42A6-AE64-DF62948B57D2-low.gif
Figure 9-19 Load Transient Response; 5 mA to 290 mA