Commercial · Texas InstrumentsUpdated 2026-10-03
LM317T
Core adjustable positive voltage regulator integrated circuit, capable of supplying more than 1.5 A over an output voltage range of 1.2 V to 37 V. Denotes the TO-220 package type. Identifies the device as a Linear Monolithic integrated circuit, a common designation for linear ICs from manufacturers like National Semiconductor (now Texas Instruments).
Part number dissection
LMDevice as a Linear Monolithic integrated circuit, a common designation for linear ICs from manufacturers like National Semiconductor (now Texas Instruments).
317Core adjustable positive voltage regulator integrated circuit, capable of supplying more than 1.5 A over an output voltage range of 1.2 V to 37 V.
TDenotes the TO-220 package type.
Specifications
Base codeCore adjustable positive voltage regulator integrated circuit, capable of supplying more than 1.5 A over an output voltage range of 1.2 V to 37 V.
Finish / variantDenotes the TO-220 package type.
Acceptable alternates
LM317BTExplicitly listed by STMicroelectronics as an LM317 variant in a TO-220 package.
LM317KCSExplicitly listed by Texas Instruments as an LM317 variant in a TO-220 package.
Confirm acceptability against your drawing before ordering.
Availability
Lead timeQuoted on request
TraceabilityFull documentation with every shipment
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