SNOS510Q November   1999  – October 2016 LP2985LV-N

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 Multiple Voltage Options
      2. 7.3.2 Output Voltage Accuracy
      3. 7.3.3 Ultra-Low-Dropout Voltage
      4. 7.3.4 Low Ground Current
      5. 7.3.5 Sleep Mode
      6. 7.3.6 Internal Protection Circuitry
        1. 7.3.6.1 Short Circuit Protection (Current Limit)
        2. 7.3.6.2 Thermal Protection
      7. 7.3.7 Enhanced Stability
      8. 7.3.8 Low Noise
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VOUT(TARGET) + 0.6 V ≥ VIN > 16 V
      2. 7.4.2 Operation With ON/OFF Control
  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 External Capacitors
          1. 8.2.2.1.1 Input Capacitor
          2. 8.2.2.1.2 Output Capacitor
          3. 8.2.2.1.3 Noise Bypass Capacitor
        2. 8.2.2.2 Capacitor Characteristics
          1. 8.2.2.2.1 Tantalum
        3. 8.2.2.3 On/OFF Input Operation
        4. 8.2.2.4 Reverse Input-Output Voltage
        5. 8.2.2.5 Power Dissipation
        6. 8.2.2.6 Estimating Junction Temperature
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 DSBGA Mounting
    4. 10.4 DSBGA Light Sensitivity
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
      2. 11.1.2 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 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

The LP2985LV-N is designed to operate from a minimum input supply voltage of either 2.2 V, or VOUT + VDO, whichever is higher, up to a maximum input supply voltage of 16 V. However, to ensure that the LP2985LV-N output voltage is well regulated, in specification, and that the dynamic performance is optimum, TI recommends a minimum a minimum input supply voltage of at least VOUT + 1 V.

The input supply voltage must be well regulated and free of spurious noise. A minimum capacitor value of 1 µF to be placed within 1 cm of the IN pin. Any good-quality ceramic, tantalum, or film capacitor may be used at the input.