JAJSEF4P April   2012  – January 2024 LP5907

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Output and Input Capacitors
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Enable (EN)
      2. 6.3.2 Low Output Noise
      3. 6.3.3 Output Automatic Discharge
      4. 6.3.4 Remote Output Capacitor Placement
      5. 6.3.5 Thermal Overload Protection (TSD)
    4. 6.4 Device Functional Modes
      1. 6.4.1 Enable (EN)
      2. 6.4.2 Minimum Operating Input Voltage (VIN)
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Power Dissipation and Device Operation
        3. 7.2.2.3 External Capacitors
        4. 7.2.2.4 Input Capacitor
        5. 7.2.2.5 Output Capacitor
        6. 7.2.2.6 Capacitor Characteristics
        7. 7.2.2.7 Remote Capacitor Operation
        8. 7.2.2.8 No-Load Stability
        9. 7.2.2.9 Enable Control
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 X2SON Mounting
        2. 7.4.1.2 DSBGA Mounting
        3. 7.4.1.3 DSBGA Light Sensitivity
      2. 7.4.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Custom Design With WEBENCH® Tools
      2. 8.1.2 Related Documentation
    2. 8.2 ドキュメントの更新通知を受け取る方法
    3. 8.3 サポート・リソース
    4. 8.4 Trademarks
    5. 8.5 静電気放電に関する注意事項
    6. 8.6 用語集
  10. 9 Revision History
  11. 10Mechanical, 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

7.4.1 Layout Guidelines

The dynamic performance of the LP5907 is dependent on the layout of the PCB. PCB layout practices that are adequate for typical LDOs can degrade the PSRR, noise, or transient performance of the LP5907.

Best performance is achieved by placing CIN and COUT on the same side of the PCB as the LP5907, and as close to the package as practical. The ground connections for CIN and COUT must route back to the LP5907 ground pin using as wide and short of a copper trace as practical.

Connections using long trace lengths, narrow trace widths, and connections through vias must be avoided. These connections add parasitic inductances and resistance that results in inferior performance, especially during transient conditions.