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LM137 - Negative Adjustable Regulator

Features

Typical Application

LM137 Typical Application
LM137 Typical Application

Description

The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From Linear Technology Are Now Obsolete

The LT137A/LT337A negative adjustable regulators will deliver up to 1.5Amps output current over an output voltage range of - 1.2V to -37V. Linear Technology has made significant improvements in these regulators compared to previous devices, such as better line and load regulation, and a maximum output voltage error of 1%.

Every effort has been made to make these devices easy to use and difficult to damage. Internal current and power limiting coupled with true thermal limiting prevents device damage due to overloads or shorts, even if the regulator is not fastened to a heat sink.

Maximum reliability is attained with Linear Technology's advanced processing techniques combined with a 100% burn-in in the thermal limit mode. This assures that all device protection circuits are working and eliminates field failures experienced with other regulators that receive only standard electrical testing.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

LM137 Package Drawing
LM137 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From Linear Technology Are Now Obsolete
  • Adjustable Power Supplies
  • System Power Supplies
  • Precision Voltage/Current Regulators
  • On-Card Regulators

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    Design Tools

    Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

    • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
    • LTpowerCAD - A complete power supply selection, synthesis and design tool
    • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
    • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
    • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
    • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
    • And More!

    Technical Support