SLVS047L November   1981  – January 2015 LM237 , LM337

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Electrical Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Design Schematic
    4. 8.4 Feature Description
      1. 8.4.1 Output Voltage Adjustment
    5. 8.5 Device Functional Modes
      1. 8.5.1 Adjustable Output Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 General Configurations
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Output Voltage Range Adjustable From –1.2 V to –37 V
  • Output Current Capability of 1.5 A Max
  • Input Regulation Typically 0.01% Per Input-Voltage Change
  • Output Regulation Typically 0.3%
  • Peak Output Current Constant Over Temperature Range of Regulator
  • Ripple Rejection Typically 77 dB
  • Direct Replacement for Industry-Standard LM237 and LM337

2 Applications

  • Applications Requiring Negative Output Voltage or Precision Current Regulation
  • Consumer Electronics
  • End Equipment
  • Portable Applications

3 Description

The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of –1.5 A over an output voltage range of –1.2 V to –37 V. They require only two external resistors to set the output voltage and one output capacitor for frequency compensation.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMx37 TO-220 (4) 10.16 mm x 8.82 mm
TO-263 (4) 10.16 mm x 9.02 mm
TO-252 (4) 6.6 mm x 6.10 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Simplified Schematic

fig1_lvs047.gif