SNVS083O February   2005  – March 2015 LP2989

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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 High-Accuracy Output Voltage
      2. 7.3.2 Sleep Mode
      3. 7.3.3 Error Detection Comparator Output
      4. 7.3.4 Short Circuit Protection (Current Limit)
      5. 7.3.5 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation With 16 V ≥ VIN > VOUT(TARGET) + 1 V
      2. 7.4.2 Operation with Shutdown Control
      3. 7.4.3 Shutdown Input Operation
  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 WSON Package Devices
        2. 8.2.2.2 External Capacitors
          1. 8.2.2.2.1 Input Capacitor
          2. 8.2.2.2.2 Output Capacitor
          3. 8.2.2.2.3 Noise Bypass Capacitor
        3. 8.2.2.3 Capacitor Characteristics
          1. 8.2.2.3.1 Ceramic
          2. 8.2.2.3.2 Tantalum
          3. 8.2.2.3.3 Film
        4. 8.2.2.4 Reverse Input-Output Voltage
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, 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 Power Supply Recommendations

The LP2989 is designed to operate from an input voltage supply range from 2.1 V to 16 V. The input voltage range provides adequate headroom for the device to have a regulated output. This input supply must be well regulated. If the input supply is noisy, additional input capacitors with low ESR can help improve the output noise performance.