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LM138K - 5-Amp Adjustable Regulator

Download the LM138K datasheet PDF. This datasheet also covers the LM138 variant, as both devices belong to the same 5-amp adjustable regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM138 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 5 A over a 1.2-V to 32-V output range.

They are exceptionally easy to use and require only 2 resistors to set the output voltage.

Key Features

  • 1 Specified 7-A Peak Output Current.
  • Specified 5-A Output Current.
  • Adjustable Output Down to 1.2 V.
  • Specified Thermal Regulation.
  • Current Limit Constant With Temperature.
  • P + Product Enhancement Tested.
  • Output is Short-Circuit Protected 2.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM138-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM138K Three-terminal 5A adjustable voltage regulator STMicroelectronics
LM138 5-Amp Adjustable Regulators National Semiconductor
LM138 Three-terminal 5A adjustable voltage regulator STMicroelectronics
LM138 5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR Seme LAB
LM138 5A Positive Adjustable Voltage Regulator Linear Technology

Other Datasheets by Texas Instruments

Part Number Description
LM138 5-Amp Adjustable Regulator
LM138QML 5-A Adjustable Output Linear Regulator
LM134 3-Terminal Adjustable Current Sources
LM135 Precision Temperature Sensors
LM135A Precision Temperature Sensors

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM138, LM338 SNVS771C – MAY 1998 – REVISED DECEMBER 2016 LM138 and LM338 5-Amp Adjustable Regulators 1 Features •1 Specified 7-A Peak Output Current • Specified 5-A Output Current • Adjustable Output Down to 1.2 V • Specified Thermal Regulation • Current Limit Constant With Temperature • P + Product Enhancement Tested • Output is Short-Circuit Protected 2 Applications • Adjustable Power Supplies • Constant Current Regulators • Battery Chargers Pin 1. Adjustment 2. Output 3.