SNVSAG0A November   2016  – February 2017 LP5922

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 Input and Output Capacitors
    7. 6.7 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 Output Voltage
      2. 7.3.2 Enable
      3. 7.3.3 Output Automatic Discharge
      4. 7.3.4 Programmable Soft Start and Noise Reduction
      5. 7.3.5 Internal Current Limit
      6. 7.3.6 Thermal Overload Protection
      7. 7.3.7 Power Good Output
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable (EN)
      2. 7.4.2 Undervoltage Lockout (UVLO)
      3. 7.4.3 Minimum Operating Input Voltage
  8. 8 Applications 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  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  External Capacitors
        3. 8.2.2.3  Input Capacitor, CIN
        4. 8.2.2.4  Output Capacitor, COUT
        5. 8.2.2.5  Soft-Start and Noise-Reduction Capacitor, CSS/NR
        6. 8.2.2.6  Feed-Forward Capacitor, CFF
        7. 8.2.2.7  No-Load Stability
        8. 8.2.2.8  Power Dissipation
        9. 8.2.2.9  Estimating Junction Temperature
        10. 8.2.2.10 Recommended Continuous Operating Area
      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 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Custom Design With WEBENCH® Tools
    2. 11.2 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Power Supply Recommendations

This device is designed to operate from an input supply voltage range of 1.3 V to 6 V. The input supply should be well regulated and free of spurious noise. To ensure that the LP5922 output voltage is well regulated and dynamic performance is optimum, the input supply must be at least VOUT + 1 V. A minimum capacitor value of 22 μF is required to be within 1 cm of the IN pin.