JAJSFM1B June   2018  – January 2021 TPS61372

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 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 Undervoltage Lockout
      2. 7.3.2 Enable and Disable
      3. 7.3.3 Error Amplifier
      4. 7.3.4 Bootstrap Voltage (BST)
      5. 7.3.5 Load Disconnect
      6. 7.3.6 Overvoltage Protection
      7. 7.3.7 Thermal Shutdown
      8. 7.3.8 Start-Up
      9. 7.3.9 Short Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
      2. 7.4.2 Auto PFM Mode
      3. 7.4.3 Forced PWM Mode
      4. 7.4.4 Mode Selectable
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Setting the Output Voltage
        3. 8.2.2.3 Selecting the Inductor
        4. 8.2.2.4 Selecting the Output Capacitors
        5. 8.2.2.5 Selecting the Input Capacitors
        6. 8.2.2.6 Loop Stability and Compensation
          1. 8.2.2.6.1 Small Signal Model
        7. 8.2.2.7 Loop Compensation Design Steps
        8. 8.2.2.8 Selecting the Bootstrap Capacitor
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 ドキュメントの更新通知を受け取る方法
    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

パッケージ・オプション

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発注情報

8.2.3 Application Curves

Typical condition VIN = 3 V to 5 V, VOUT = 12 V, temperature = 25°C, unless otherwise noted

GUID-09D6DC80-FF0D-41B6-A945-168936C69B66-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-3 Steady-State at 200-mA Load
GUID-7B932A39-6CD0-40F5-9B4F-12841536DF75-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-5 Start-Up by EN, Load = 12.5 Ω
GUID-85D86ED8-128A-45E6-8D51-58319BD0D449-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-7 Load Transient, 200 mA to 400 mA, 100 mA / µs
GUID-5B52D747-80BE-41E5-83EC-7182B3015B99-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-4 Steady-State at 10-mA Load
GUID-08BDD54C-9643-4ED4-8E0E-FC5CB079DEC8-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-6 Shutdown by EN, Load = 12.5 Ω
GUID-4BB0DE51-2C9F-4E00-8443-CD9C87CCEAB8-low.png
VIN = 4 V VOUT = 12 V Mode = Auto PFM
L = 2.2 µH COUT = 3 × 10 µF
Figure 8-8 Shorted Output