SNVS100F March   2000  – July 2014 LM2937

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  Handling Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: LM2937-5
    6. 6.6  Electrical Characteristics: LM2937-8
    7. 6.7  Electrical Characteristics: LM2937-10
    8. 6.8  Electrical Characteristics: LM2937-12
    9. 6.9  Electrical Characteristics: LM2937-15
    10. 6.10 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 Thermal Shutdown (TSD)
      2. 7.3.2 Short Circuit Current Limit
      3. 7.3.3 Overvoltage Shutdown (OVSD)
    4. 7.4 Device Functional Modes
  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
        2. 8.2.2.2 Output Capacitor ESR
        3. 8.2.2.3 Heatsinking
        4. 8.2.2.4 Heatsinking TO-220 Package Parts
        5. 8.2.2.5 Heatsinking DDPAK/TO-263 and SOT-223 Package Parts
        6. 8.2.2.6 SOT-223 Soldering Recommendations
      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 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 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 from at least VOUT + 1 V up to a maximum of 26 V. The input supply should be well regulated and free of spurious noise. To ensure that the LM2937 output voltage is well regulated the input supply should be at least VOUT + 2 V. A capacitor at the INPUT pin may not be specifically required if the bulk input supply filter capacitors are within three inches of the INPUT pin, but adding one will not be detrimental to operation.