JAJSCQ1B December   2016  – March 2018 LMR23630-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図
      2.      効率と負荷との関係、VIN = 12V、PFMオプション
  4. 4 改訂履歴
  5. 5 Product Portfolio
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Characteristics
    7. 7.7 Switching Characteristics
    8. 7.8 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  Fixed-Frequency Peak-Current-Mode Control
      2. 8.3.2  Adjustable Frequency
      3. 8.3.3  Adjustable Output Voltage
      4. 8.3.4  Enable/Synchronization
      5. 8.3.5  VCC, UVLO
      6. 8.3.6  Minimum ON-time, Minimum OFF-time and Frequency Foldback at Dropout Conditions
      7. 8.3.7  Power Good (PGOOD)
      8. 8.3.8  Internal Compensation and CFF
      9. 8.3.9  Bootstrap Voltage (BOOT)
      10. 8.3.10 Overcurrent and Short-Circuit Protection
      11. 8.3.11 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Active Mode
      3. 8.4.3 CCM Mode
      4. 8.4.4 Light Load Operation (PFM Option)
      5. 8.4.5 Light Load Operation (FPWM Option)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1  Custom Design With WEBENCH® Tools
        2. 9.2.2.2  Output Voltage Setpoint
        3. 9.2.2.3  Switching Frequency
        4. 9.2.2.4  Inductor Selection
        5. 9.2.2.5  Output Capacitor Selection
        6. 9.2.2.6  Feed-Forward Capacitor
        7. 9.2.2.7  Input Capacitor Selection
        8. 9.2.2.8  Bootstrap Capacitor Selection
        9. 9.2.2.9  VCC Capacitor Selection
        10. 9.2.2.10 UVLO Setpoint
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Compact Layout for EMI Reduction
      2. 11.1.2 Ground Plane and Thermal Considerations
      3. 11.1.3 Feedback Resistors
    2. 11.2 Layout Examples
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 WEBENCH®ツールによるカスタム設計
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報

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

Unless otherwise specified the following conditions apply: VIN = 12 V, fSW = 400 kHz, L = 8.2 µH, COUT = 150 µF, TA = 25 °C.
LMR23630-Q1 waveform_01_snvsah2.png
VOUT = 5 V IOUT = 3 A fSW = 400 kHz
Figure 24. CCM Mode
LMR23630-Q1 waveform_03_snvsah2.png
VOUT = 5 V IOUT = 0 mA fSW = 400 kHz
Figure 26. PFM Mode
LMR23630-Q1 waveform_02_snvsah2.png
VOUT = 5 V IOUT = 150 mA fSW = 400 kHz
Figure 25. DCM Mode
LMR23630-Q1 waveform_04_snvsah2.png
VOUT = 5 V IOUT = 0 mA fSW = 400 kHz
Figure 27. FPWM Mode
LMR23630-Q1 waveform_05_snvsah2.png
VIN = 12 V VOUT = 5 V IOUT = 2 A
Figure 28. Start-Up by VIN
LMR23630-Q1 waveform_07_snvsah2.png
VIN = 12 V VOUT = 5 V IOUT = 0.3 A to 3 A, 100 mA / μs
Figure 30. Load Transient
LMR23630-Q1 waveform_09_snvsah2.png
VOUT = 5 V IOUT = 1 A to short
Figure 32. Short Protection
LMR23630-Q1 waveform_06_snvsah2.png
VIN = 12 V VOUT = 5 V IOUT = 2 A
Figure 29. Start-Up by EN
LMR23630-Q1 waveform_08_snvsah2.png
VIN = 7 V to 36 V, 2 V / μs VOUT = 5 V IOUT = 3 A
Figure 31. Line Transient
LMR23630-Q1 waveform_10_snvsah2.png
VOUT = 5 V IOUT = short to 1 A
Figure 33. Short Recovery