SNVS469F October   2006  – December 2015 LP5952

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  Electrical Characteristics: Quiescent Currents
    7. 6.7  Electrical Characteristics: Shutdown Currents
    8. 6.8  Electrical Characteristics: Enable Control
    9. 6.9  Electrical Characteristics: Thermal Protection
    10. 6.10 Electrical Characteristics: Transient Characteristics
    11. 6.11 Input and Output Capacitors (Recommended)
    12. 6.12 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 Dual-Rail Supply
      2. 7.3.2 No-Load Stability
      3. 7.3.3 Fast Turnon
      4. 7.3.4 Short-Circuit Protection
      5. 7.3.5 Thermal-Overload Protection
      6. 7.3.6 Reverse Current Path
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Dual-Rail Linear Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 External Capacitors
          2. 8.2.1.2.2 Input Capacitor
          3. 8.2.1.2.3 Output Capacitor
          4. 8.2.1.2.4 Capacitor Characteristics
          5. 8.2.1.2.5 Power Dissipation and Device Operation
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Additional Application Circuit
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

9 Power Supply Recommendations

This device is designed to operate from an input supply voltage range of 0.7 V to 4.5 V. The input supply should be well regulated and free of spurious noise. A minimum capacitor value of 1-μF is required to be within 1 cm of the IN pin. The VBATT range is 2.5 V to 5.5 V and, in the typical application, VBATT is connected to batteries. In any application, VIN does not exceed VBATT.