JAJSEV4C December   2015  – February 2018 LMR23610

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
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Switching Characteristics
    8. 6.8 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 Fixed Frequency Peak Current Mode Control
      2. 7.3.2 Adjustable Output Voltage
      3. 7.3.3 EN/SYNC
      4. 7.3.4 VCC, UVLO
      5. 7.3.5 Minimum ON-Time, Minimum OFF-Time and Frequency Foldback at Dropout Conditions
      6. 7.3.6 Internal Compensation and CFF
      7. 7.3.7 Bootstrap Voltage (BOOT)
      8. 7.3.8 Overcurrent and Short-Circuit Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 CCM Mode
      4. 7.4.4 Light Load Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      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  Output Voltage Setpoint
        3. 8.2.2.3  Switching Frequency
        4. 8.2.2.4  Inductor Selection
        5. 8.2.2.5  Output Capacitor Selection
        6. 8.2.2.6  Feed-Forward Capacitor
        7. 8.2.2.7  Input Capacitor Selection
        8. 8.2.2.8  Bootstrap Capacitor Selection
        9. 8.2.2.9  VCC Capacitor Selection
        10. 8.2.2.10 Undervoltage Lockout Setpoint
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Compact Layout for EMI Reduction
      2. 10.1.2 Ground Plane and Thermal Considerations
      3. 10.1.3 Feedback Resistors
    2. 10.2 Layout Example
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 WEBENCH®ツールによるカスタム設計
    2. 11.2 ドキュメントの更新通知を受け取る方法
    3. 11.3 コミュニティ・リソース
    4. 11.4 商標
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 Glossary
  12. 12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

6.8 Typical Characteristics

Unless otherwise specified the following conditions apply: VIN = 12 V, fSW = 400 kHz, L = 22 µH, COUT = 47 µF × 2, TA = 25°C.
LMR23610 D001_SNVSAH4.gif
fSW = 400 kHz VOUT = 5 V
Figure 1. Efficiency vs Load Current
LMR23610 D003_SNVSAH4.gif
fSW = 1000 kHz (Sync) VOUT = 5 V
Figure 3. Efficiency vs Load Current
LMR23610 D005_SNVSAH4.gif
VOUT = 5 V
Figure 5. Load Regulation
LMR23610 D007_SNVSAH4.gif
VOUT = 5 V
Figure 7. Dropout Curve
LMR23610 D009_SNVSAH2.gif
VIN = 12 V VFB = 1.1 V
Figure 9. IQ vs Junction Temperature
LMR23610 D011_SNVSAH2.gif
Figure 11. VIN UVLO Hysteresis vs Junction Temperature
LMR23610 D002_SNVSAH4.gif
fSW = 400 kHz VOUT = 3.3 V
Figure 2. Efficiency vs Load Current
LMR23610 D004_SNVSAH4.gif
fSW = 1000 kHz (Sync) VOUT = 3.3 V
Figure 4. Efficiency vs Load Current
LMR23610 D006_SNVSAH4.gif
VOUT = 5 V
Figure 6. Line Regulation
LMR23610 D008_SNVSAH4.gif
VOUT = 3.3 V
Figure 8. Dropout Curve
LMR23610 D010_SNVSAH2.gif
Figure 10. VIN UVLO Rising Threshold vs Junction Temperature
LMR23610 D009_SNVSAH4.gif
VIN = 12 V
Figure 12. HS and LS Current Limit vs Junction Temperature