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Texas Instruments LM317AT LDO Voltage Regulators

Adjustable positive linear voltage regulator, 1.5A output current, 40V maximum input voltage.

32,574 ActiveTexas InstrumentsLM317ATTO-220$1.65RoHS
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LM317AT
Manufacturer
Texas Instruments
Part Number (MPN)
LM317AT
Category
Integrated Circuits (ICs)Power Management ICsVoltage Regulators - Linear
Base Model
LM317AT
Detailed Description
Adjustable positive linear voltage regulator, 1.5A output current, 40V maximum input voltage. Features 1% output voltage accuracy, 2V dropout voltage, and a 1.262V reference voltage. Operates across a -40°C to 125°C temperature range. Packaged in a TO-220 case for through-hole mounting.
Package
TO-220
Lifecycle Status
Active
RoHS State
Not CompliantNo
Datasheet
PDF LM317AT Datasheet
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Ordering Code Family

LM317AT groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

Texas Instruments LM317AT LDO Voltage Regulators technical specifications.

General

RoHS
No
Package / Case
TO-220-3
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 125°C
Supply Voltage
3V ~ 40V
Accuracy
1%
Package
TO-220
Current Rating
1.5A
Voltage Dropout
2V
Height
8.89mm

Alternate Parts Comparison (LM317AT vs LM317AT/E7001847 vs LM317AT/NOPB vs LM3S1332-EQC50-A2T)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Texas InstrumentsLM317AT
Texas InstrumentsLM317AT/E7001847
Texas InstrumentsLM317AT/NOPB
Texas InstrumentsLM3S1332-EQC50-A2T
Package / CaseTO-220-3TO-220-3TO-220-3100-LQFP
Mounting TypeThrough HoleThrough HoleThrough HoleSurface Mount
Operating Temperature-40°C ~ 125°C-40°C ~ 125°C-40°C ~ 125°C-40°C ~ 105°C (TA)
Max Input Voltage40V40V40V--
Output ConfigurationPositivePositivePositive--
Output Current1.5A1.5A1.5A--
Output TypeAdjustableFixedAdjustable--
Output Voltage37V1.25V1.25V--
Protection FeaturesOver Current, Over Temperature, Short CircuitOver Current, Over Temperature, Short CircuitOver Current, Over Temperature, Short Circuit--
PSRR65dB80dB ~ 65dB (120Hz)80dB ~ 65dB (120Hz)--
Quiescent Current10 mA10 mA10 mA--
Voltage Output Max37V37V37V--
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Texas Instruments LM317AT LDO Voltage Regulators Overview

Adjustable positive linear voltage regulator, 1.5A output current, 40V maximum input voltage. Features 1% output voltage accuracy, 2V dropout voltage, and a 1.262V reference voltage. Operates across a -40°C to 125°C temperature range. Packaged in a TO-220 case for through-hole mounting.

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