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Power Circuits / Linear Regulator ICs / LM317T
Datasheets
LM317T by:
STMicroelectronics
Analog Devices Inc
Bay Linear Inc
Comset Semiconductor
EBV Chips
EVVO Semiconductor
Fairchild Semiconductor Corporation
Freescale Semiconductor
Honest Han
HTC Korea
HuaGuan Semiconductor
Inchange Semiconductor Company Ltd
Integrated Power Semiconductors Ltd
Jiangsu Changjiang Electronics Technology Co Ltd
Linear Technology
Maxim Integrated Products
MCE Semiconductor Inc
Micro Commercial Components
Motorola Mobility LLC
Motorola Semiconductor Products
National Semiconductor Corporation
NTE Electronics Inc
onsemi
Samsung Semiconductor
SGS Thomson
SGS-Ates Componenti Electronici SPA
Silicon Penn Microelectronics Co Ltd
SR Components Inc
ST-Ericsson
STMicroelectronics
Texas Instruments
TT Electronics Power and Hybrid / Semelab Limited
TT Electronics Resistors
UMW
Unisonic Technologies Co Ltd
Not Found

1.2 V to 37 V adjustable voltage regulators

Part Details for LM317T by STMicroelectronics

Results Overview of LM317T by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

LM317T Information

LM317T by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
LM317T/NOPB Texas Instruments 1.5-A adjustable output linear regulator 3-TO-220 0 to 125
LM317T/LF01 Texas Instruments 1.5-A adjustable output linear regulator 3-TO-220
LM317T Texas Instruments 1.5-A adjustable output linear regulator 3-TO-220

Price & Stock for LM317T

Part # Distributor Description Stock Price Buy
DISTI # 34X0662
Newark Volt Reg, Adjustable, 37V, 2.2A/To-220-3, Output Type:Adjustable, No. Of Outputs:1Outputs, Output... Voltage - Nom:-, Output Voltage Min:1.2V, Output Voltage Max:37V, Input Voltage Min:4.2V, Input Voltage Max:40V, No. Of Pins:3Pins Rohs Compliant: Yes |Stmicroelectronics LM317T more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 149496
  • 1 $0.2530
  • 10 $0.2530
  • 100 $0.2530
  • 500 $0.2530
  • 1,000 $0.2530
  • 2,500 $0.2530
  • 10,000 $0.2530
$0.2530 Buy Now
DISTI # 497-1575-5-ND
DigiKey IC REG LINEAR POS ADJ 1.5A TO220 Min Qty: 1 Lead time: 8 Weeks Container: Tube 4801
In Stock
  • 1 $0.6100
  • 10 $0.4280
  • 50 $0.3564
  • 100 $0.3343
  • 250 $0.3110
  • 500 $0.2969
  • 1,000 $0.2853
  • 2,500 $0.2731
  • 5,000 $0.2657
$0.2657 / $0.6100 Buy Now
DISTI # LM317T
Avnet Americas Linear Voltage Regulator, Adjustable, Positive Output, 40 V, 1.2 V to 37 V, 1.5 A, 3 Pins, TO-220 - ... Rail/Tube (Alt: LM317T) more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks, 0 Days Container: Tube 68097
  • 1 $0.1639
$0.1639 Buy Now
DISTI # 34X0662
Avnet Americas Linear Voltage Regulator, Adjustable, Positive Output, 40 V, 1.2 V to 37 V, 1.5 A, 3 Pins, TO-220 - ... Bulk (Alt: 34X0662) more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 17 Weeks, 3 Days Container: Bulk 28444 Partner Stock
  • 1 $0.6980
  • 10 $0.5160
  • 100 $0.4180
  • 500 $0.3790
  • 1,000 $0.3670
$0.3670 / $0.6980 Buy Now
DISTI # LM317T
Avnet Americas Linear Voltage Regulator, Adjustable, Positive Output, 40 V, 1.2 V to 37 V, 1.5 A, 3 Pins, TO-220 - ... Rail/Tube (Alt: LM317T) more RoHS: Compliant Min Qty: 3000 Package Multiple: 1000 Lead time: 8 Weeks, 0 Days Container: Tube 0
  • 4,000 $0.1766
  • 6,000 $0.1755
  • 10,000 $0.1722
  • 20,000 $0.1691
  • 40,000 $0.1661
$0.1661 / $0.1766 Buy Now
DISTI # 511-LM317T
Mouser Electronics Linear Voltage Regulators 1.2-37V Adj Positive 1.5 Amp Output RoHS: Compliant 47129
  • 1 $0.6100
  • 10 $0.4280
  • 25 $0.3570
  • 100 $0.3350
  • 250 $0.2970
  • 1,000 $0.2850
  • 3,000 $0.2650
  • 20,000 $0.2630
$0.2630 / $0.6100 Buy Now
DISTI # E02:0323_00031097
Arrow Electronics Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220AB Tube Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Date Code: 2441 Europe - 529815
  • 1 $0.2108
  • 10 $0.1661
  • 100 $0.1645
  • 500 $0.1629
  • 1,000 $0.1612
  • 2,000 $0.1596
  • 5,000 $0.1580
  • 10,000 $0.1423
$0.1423 / $0.2108 Buy Now
DISTI # V36:1790_06553372
Arrow Electronics Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220AB Tube Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Date Code: 2441 Americas - 4676
  • 1 $0.4767
  • 10 $0.2255
  • 100 $0.2232
  • 500 $0.2210
  • 1,000 $0.2188
  • 2,000 $0.2166
  • 5,000 $0.2144
  • 10,000 $0.1666
$0.1666 / $0.4767 Buy Now
STMicroelectronics 1.2 V to 37 V adjustable voltage regulators RoHS: Compliant Min Qty: 1 47141
  • 1 $0.6000
  • 10 $0.4200
  • 25 $0.3500
  • 100 $0.3300
  • 250 $0.2900
$0.2900 / $0.6000 Buy Now
Future Electronics LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220 RoHS: Compliant pbFree: Yes Min Qty: 50 Package Multiple: 50 Lead time: 8 Weeks Container: Tube 1455110
Tube
  • 50 $0.1880
  • 250 $0.1830
  • 1,250 $0.1770
  • 3,750 $0.1740
  • 10,000 $0.1680
$0.1680 / $0.1880 Buy Now
Future Electronics LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220 RoHS: Compliant pbFree: Yes Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Container: Tube 2
Tube
  • 1 $0.1880
  • 200 $0.1840
  • 750 $0.1800
  • 2,500 $0.1760
  • 10,000 $0.1680
$0.1680 / $0.1880 Buy Now
Future Electronics LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220 RoHS: Compliant pbFree: Yes Min Qty: 5000 Package Multiple: 50 Lead time: 8 Weeks Container: Tube 0
Tube
  • 1 $0.1880
  • 200 $0.1840
  • 750 $0.1800
  • 2,500 $0.1760
  • 10,000 $0.1680
$0.1680 / $0.1880 Buy Now
Future Electronics LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220 RoHS: Compliant pbFree: Yes Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Container: Tube 0
Tube
  • 1 $0.1880
  • 200 $0.1840
  • 750 $0.1800
  • 2,500 $0.1760
  • 10,000 $0.1680
$0.1680 / $0.1880 Buy Now
Future Electronics LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220 RoHS: Compliant pbFree: Yes Min Qty: 5000 Package Multiple: 50 Lead time: 8 Weeks Container: Tube 0
Tube
  • 1 $0.1730
  • 150 $0.1690
  • 500 $0.1650
  • 1,500 $0.1620
  • 5,000 $0.1550
$0.1550 / $0.1730 Buy Now
DISTI # 86894480
Verical Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220AB Tube Min Qty: 30 Package Multiple: 1 Date Code: 2441 Americas - 529800
  • 30 $0.1663
  • 100 $0.1647
  • 500 $0.1630
  • 1,000 $0.1614
  • 2,000 $0.1598
  • 5,000 $0.1581
  • 10,000 $0.1425
$0.1425 / $0.1663 Buy Now
DISTI # 87778714
Verical Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220AB Tube Min Qty: 36 Package Multiple: 1 Date Code: 2441 Americas - 4676
  • 36 $0.2255
  • 100 $0.2232
  • 500 $0.2210
  • 1,000 $0.2188
  • 2,000 $0.2166
  • 5,000 $0.2144
  • 10,000 $0.1666
$0.1666 / $0.2255 Buy Now
Bristol Electronics   689
RFQ
Bristol Electronics   59
RFQ
Bristol Electronics   4
RFQ
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 (Also Known As: LM317TP+) 20
  • 1 $0.7700
  • 7 $0.6160
$0.6160 / $0.7700 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 20
  • 1 $0.7700
  • 7 $0.6160
$0.6160 / $0.7700 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 18
  • 1 $0.7700
  • 7 $0.6160
$0.6160 / $0.7700 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 (Also Known As: LM317TP+) 18
  • 1 $0.7700
  • 7 $0.6160
$0.6160 / $0.7700 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 (Also Known As: LM317TP+) 7
  • 1 $0.5739
$0.5739 Buy Now
Quest Components 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 7
  • 1 $0.5739
$0.5739 Buy Now
DISTI # LM317T
TME IC: voltage regulator, linear,adjustable, 1.2÷37V, 1.5A, TO220AB Min Qty: 1 7738
  • 1 $0.6630
  • 10 $0.5600
  • 50 $0.5100
  • 100 $0.4330
  • 250 $0.4090
  • 500 $0.3580
  • 1,000 $0.2690
  • 2,500 $0.2600
  • 5,000 $0.2410
  • 25,000 $0.2270
$0.2270 / $0.6630 Buy Now
ComSIT USA AVAILABLE EU 895
RFQ
ComSIT USA 3-TERMINAL POSITIVE ADJUSTABLE REGULATOR Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, ... BIPolar, PSFM3 more RoHS: Compliant ECCN: EAR99 Stock DE - 20738
Stock ES - 1934
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # SMC-LM317T
Sensible Micro Corporation OEM Excess 5-7 Days Leadtime, We are an AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 936
RFQ
Velocity Electronics Our Stock 37646
RFQ
Chip 1 Exchange INSTOCK 1082
RFQ
DISTI # LM317T
Avnet Silica (Alt: LM317T) RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 9 Weeks, 0 Days Silica - 140050
Buy Now
DISTI # LM317T
EBV Elektronik (Alt: LM317T) RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 9 Weeks, 0 Days EBV - 795200
Buy Now
LCSC 65dB(120Hz) 1.5A Adjustable 1.2V37V Positive electrode 40V TO-220AB-3 Voltage Regulators - Linear Lo... w Drop Out (LDO) Regulators ROHS more 1965
  • 5 $0.2689
  • 50 $0.2143
  • 150 $0.1909
  • 500 $0.1617
  • 2,500 $0.1487
  • 5,000 $0.1409
$0.1409 / $0.2689 Buy Now

Part Details for LM317T

LM317T CAD Models

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LM317T Part Data Attributes

Parametric Data
LM317T STMicroelectronics
Buy Now Datasheet
Compare Parts:
LM317T STMicroelectronics 1.2 V to 37 V adjustable voltage regulators
Select a part to compare:
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SFM
Pin Count 3
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 8 Weeks
Samacsys Manufacturer 意法半导体
Adjustability ADJUSTABLE
Input-Output Voltage Differential-Max 40 V
Input-Output Voltage Differential-Min 3 V
JESD-30 Code R-XSFM-T3
JESD-609 Code e3
Line Regulation-Max (%/V) 0.07
Load Regulation-Max(%) 1.5%
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min
Output Current1-Max 1.5 A
Output Voltage1-Max 37 V
Output Voltage1-Min 1.2 V
Package Body Material UNSPECIFIED
Package Code TO-220
Package Equivalence Code SIP3,.1TB
Package Shape RECTANGULAR
Package Style FLANGE MOUNT
Packing Method TUBE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
Surface Mount NO
Technology BIPOLAR
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED

Alternate Parts for LM317T

This table gives cross-reference parts and alternative options found for LM317T. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM317T, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LM317D2TG onsemi $0.4845 Linear Voltage Regulator, 1.5 A, High PSRR, Adjustable, Positive TJ = 0° to +125°C, 3 LEAD D2PAK, 50-TUBE LM317T vs LM317D2TG
LM317BD2TG onsemi $0.4776 Linear Voltage Regulator, 1.5 A, High PSRR, Adjustable, Positive TJ = -40° to +125°C, 3 LEAD D2PAK, 50-TUBE LM317T vs LM317BD2TG
LM317D2TR4G onsemi $0.5360 Linear Voltage Regulator, 1.5 A, High PSRR, Adjustable, Positive TJ = 0° to +125°C, 3 LEAD D2PAK, 800-REEL LM317T vs LM317D2TR4G
LM217D2T-TR STMicroelectronics $0.8791 1.2 V to 37 V adjustable voltage regulators LM317T vs LM217D2T-TR
LM317BD2TR4G onsemi $0.4864 Linear Voltage Regulator, 1.5 A, High PSRR, Adjustable, Positive TJ = -40° to +125°C, 3 LEAD D2PAK, 800-REEL LM317T vs LM317BD2TR4G

LM317T Related Parts

LM317T Frequently Asked Questions (FAQ)

  • The minimum input voltage required for the LM317T to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage would be 8V.

  • To ensure stability and prevent oscillations, a minimum output capacitance of 1uF is recommended. Additionally, the input capacitor should be at least 10uF to prevent oscillations.

  • The maximum current that the LM317T can deliver is 1.5A. However, it's recommended to derate the current to 1A or less to ensure reliable operation.

  • No, the LM317T is designed to regulate positive voltages only. If you need a negative voltage regulator, you should consider using a different IC, such as the LM337.

  • The output voltage of the LM317T can be adjusted by using a resistive divider network between the output and the adjust pin. The output voltage is determined by the ratio of the resistors and the reference voltage (1.25V).