LM138K - STMicroelectronics

Manufacturer Part Number

LM138K

Manufacturer

STMicroelectronics

Introduction

The LM138K is a precision adjustable voltage regulator capable of supplying up to 5 amps of current. It is designed to operate over a wide range of input voltages, up to 35V, and can provide a highly stable output voltage, adjustable from 1.2V to 32V.

Product Features and Performance

High output current capability of up to 5A

Adjustable output voltage range from 1.2V to 32V

Wide input voltage range up to 35V

High power supply rejection ratio (PSRR) of 75dB at 120Hz

Thermal overload and short-circuit protection

Product Advantages

Excellent line and load regulation

Minimal external components required

Thermal regulation minimizes temperature drift

Overload and short-circuit protection for reliable operation

Key Reasons to Choose This Product

Versatile adjustable output voltage range suits a wide variety of applications

High current capability enables use in demanding power supply designs

Robust protection features ensure reliable and safe operation

Simple to use with minimal external components

Quality and Safety Features

Thermal overload protection

Short-circuit protection

Operates over a wide temperature range of -55°C to 150°C

Compatibility

Through-hole mounting in TO-204AA or TO-3 packages

Compatible with a variety of power supply designs

Application Areas

Precision power supplies

Motor control systems

Industrial and instrumentation equipment

Telecommunications equipment

Product Lifecycle

The LM138K is an obsolete product, meaning it is no longer in active production. However, there are several alternative models available that offer similar functionality and performance. Customers are advised to contact our website's sales team for information on suitable replacement options.