LM317S - Texas Instruments

Manufacturer Part Number

LM317S

Manufacturer

Texas Instruments

Introduction

The LM317S is a 3-terminal positive adjustable voltage regulator capable of supplying up to 1.5A of load current with very high input-output voltage differential.

Product Features and Performance

Adjustable output voltage from 1.25V to 37V

Output current up to 1.5A

High efficiency with low dropout voltage

Low quiescent current of 10mA

High ripple rejection ratio of 64dB at 120Hz

Overload and thermal protection

Product Advantages

Wide operating voltage range

High output current capability

Excellent regulation and stability

Built-in overload and thermal protection

Key Technical Parameters

Input Voltage Range: 37V (max)

Output Voltage Range: 1.25V to 37V

Output Current: 1.5A (max)

Quiescent Current: 10mA

PSRR: 64dB at 120Hz

Operating Temperature: 0°C to 125°C

Quality and Safety Features

Over-current protection

Over-temperature protection

Short-circuit protection

Compatibility

Suitable for a wide range of electronic applications requiring adjustable positive voltage regulation

Application Areas

Power supplies

Battery chargers

Instrumentation and control circuits

Operational amplifier circuits

Product Lifecycle

The LM317S is a mature and widely-used product, with no immediate plans for discontinuation

Replacement and upgrade options are readily available from Texas Instruments and other manufacturers

Key Reasons to Choose This Product

Wide adjustable output voltage range

High output current capability

Excellent regulation and stability

Built-in protection features for reliable operation

Compatibility with a wide range of applications

Mature and well-established product with available alternatives