LM317K

Obsolete

STMicroelectronics

IC REG LINEAR POS ADJ 1.5A TO3

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LM317K

Obsolete

STMicroelectronics

IC REG LINEAR POS ADJ 1.5A TO3

Deep-Dive with AI

DocumentsDatasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM317K

Current - Output	1.5 A
Current - Quiescent (Iq)	10 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	TO-3, TO-204AA
Protection Features	Over Temperature, Over Current, Short Circuit
PSRR [Max]	65 dB
PSRR [Min]	80 dB
Voltage - Output (Max)	37 V
Voltage - Output (Min/Fixed)	1.2 V

LM317L Series

Medium current 1.2 to 37 V adjustable voltage regulator

Part	Supplier Device Package	Voltage - Output (Max)	Voltage - Output (Min/Fixed)	Protection Features	Number of Regulators	Mounting Type	PSRR [Max]	PSRR [Min]	Current - Quiescent (Iq)	Output Type	Current - Output	Output Configuration	Operating Temperature [Max]	Package / Case	Package / Case [y]	Package / Case [x]
STMicroelectronics LM317MT	TO-220	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Through Hole	65 dB	80 dB	10 mA	Adjustable	500 mA	Positive	125 ¯C	TO-220-3
STMicroelectronics LM317LD13TR	8-SOIC	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Surface Mount	65 dB	80 dB	5 mA	Adjustable	100 mA	Positive	125 °C	8-SOIC	3.9 mm	0.154 in
STMicroelectronics LM317T	TO-220	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Through Hole	65 dB	80 dB	10 mA	Adjustable	1.5 A	Positive	125 °C	TO-220-3
STMicroelectronics LM317K		37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Through Hole	65 dB	80 dB	10 mA	Adjustable	1.5 A	Positive	125 °C	TO-204AA TO-3
STMicroelectronics LM317MDT	DPAK	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Surface Mount	65 dB	80 dB	10 mA	Adjustable	500 mA	Positive	125 ¯C	DPAK (2 Leads + Tab) SC-63 TO-252-3
STMicroelectronics LM317LZ-AP	TO-92-3	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Through Hole	65 dB	80 dB	5 mA	Adjustable	100 mA	Positive	125 °C	TO-226-3 TO-92-3
STMicroelectronics LM317MDT-TR	DPAK	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Surface Mount	65 dB	80 dB	10 mA	Adjustable	500 mA	Positive	125 ¯C	DPAK (2 Leads + Tab) SC-63 TO-252-3
STMicroelectronics LM317S-TR	SOT-223	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Surface Mount	80 dB	65 dB	5 mA	Adjustable	1.5 A	Positive	125 ¯C	TO-261-4 TO-261AA
STMicroelectronics LM317LD	8-SOIC	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Surface Mount	65 dB	80 dB	5 mA	Adjustable	100 mA	Positive	125 °C	8-SOIC	3.9 mm	0.154 in
STMicroelectronics LM317LZ-TR	TO-92-3	37 V	1.2 V	Over Current Over Temperature Short Circuit	1	Through Hole	65 dB	80 dB	5 mA	Adjustable	100 mA	Positive	125 °C	TO-226-3 TO-92-3

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

LM317L Series

The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, D²PAK and SOT223 packages intended for use as positive adjustable voltage regulators.

They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range.

The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.

Documents

Technical documentation and resources