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Power Circuits / Linear Regulator ICs / LM317AT/NOPB
Datasheets
LM317AT/NOPB by:
Texas Instruments
National Semiconductor Corporation
Texas Instruments
Not Found

1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 3-TO-220 -40 to 125

Part Details for LM317AT/NOPB by Texas Instruments

Results Overview of LM317AT/NOPB by Texas Instruments

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LM317AT/NOPB Information

LM317AT/NOPB by Texas Instruments 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
DS96174CN/NOPB Rochester Electronics LLC DS96174 - Line Driver, 4 Func, 4 Driver, BIPolar, PDIP16
LM611IM/NOPB Rochester Electronics LLC LM611IM - Operational Amplifier, 7000uV Offset-Max, BIPolar
LM317AT/NOPB Texas Instruments 1% Accurate, 1.5A Adjustable Linear Regulator with Short Circuit Protection 3-TO-220 -40 to 125

Price & Stock for LM317AT/NOPB

Part # Distributor Description Stock Price Buy
DISTI # 3122678
Farnell VOLTAGE REG, ADJ, 1.25V TO 37V, TO-220-3 RoHS: Compliant Min Qty: 1 Lead time: 7 Weeks, 1 Days Container: Each 2609
  • 1 $2.2684
  • 10 $1.7369
  • 50 $1.4258
  • 100 $1.3869
  • 250 $1.3481
  • 500 $1.1744
  • 1,000 $0.9799
  • 2,500 $0.9696
$0.9696 / $2.2684 Buy Now
DISTI # LM317AT/NOPB-ND
DigiKey IC REG LIN POS ADJ 1.5A TO220-3 Min Qty: 1 Lead time: 6 Weeks Container: Tube 5380
In Stock
  • 1 $2.0300
  • 10 $1.5000
  • 45 $1.2976
  • 135 $1.1953
  • 270 $1.1452
  • 540 $1.1040
  • 1,035 $1.0720
  • 2,520 $1.0367
  • 5,040 $1.0147
$1.0147 / $2.0300 Buy Now
DISTI # 926-LM317AT/NOPB
Mouser Electronics Linear Voltage Regulators 3-TERMINAL ADJ REG RoHS: Compliant 19639
  • 1 $2.0000
  • 10 $1.5000
  • 25 $1.3000
  • 90 $1.1900
  • 270 $1.1400
  • 540 $1.1000
  • 1,035 $1.0700
  • 2,520 $1.0200
  • 5,040 $1.0000
$1.0000 / $2.0000 Buy Now
Bristol Electronics   43
RFQ
DISTI # LM317AT/NOPB
TME IC: voltage regulator, linear,adjustable, 1.2÷37V, 1.5A, TO220-3 Min Qty: 1 1746
  • 1 $1.7300
  • 5 $1.4800
  • 25 $1.1900
  • 45 $1.0400
  • 90 $1.0000
  • 180 $0.9700
  • 450 $0.9400
  • 900 $0.9200
$0.9200 / $1.7300 Buy Now
New Advantage Corporation IC REG LIN POS ADJ 1.5A TO220-3 RoHS: Compliant Min Qty: 1 Package Multiple: 100 379
  • 200 $2.2700
  • 379 $2.1200
$2.1200 / $2.2700 Buy Now
Vyrian Regulators 9159
RFQ
Win Source Electronics Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220 Tube / IC REG LINEAR ADJ 1.5A TO220-3 29000
  • 35 $1.6249
  • 80 $1.3333
  • 120 $1.2916
  • 160 $1.2500
  • 210 $1.2083
  • 280 $1.0833
$1.0833 / $1.6249 Buy Now

Part Details for LM317AT/NOPB

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LM317AT/NOPB Part Data Attributes

Parametric Data
LM317AT/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM317AT/NOPB Texas Instruments 1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy 3-TO-220 -40 to 125
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Pbfree Code Yes
Rohs Code No
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SFM
Package Description ROHS COMPLIANT, PLASTIC, TO-220, 3 PIN
Pin Count 3
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Adjustability ADJUSTABLE
Dropout Voltage1-Nom 2.25 V
Input Voltage-Max 40 V
Input Voltage-Min 3 V
Input-Output Voltage Differential-Max 40 V
Input-Output Voltage Differential-Min 3 V
JESD-30 Code R-PSFM-T3
JESD-609 Code e3
Length 14.986 mm
Line Regulation-Max (%/V) 0.02
Load Regulation-Max(%) 1%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current1-Max 1.5 A
Output Voltage1-Max 37 V
Output Voltage1-Min 1.2 V
Output Voltage1-Nom 37 V
Package Body Material PLASTIC/EPOXY
Package Code SFM
Package Equivalence Code SIP3,.1TB
Package Shape RECTANGULAR
Package Style FLANGE MOUNT
Packing Method TUBE
Qualification Status Not Qualified
Regulator Type ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
Seated Height-Max 19.55 mm
Surface Mount NO
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position SINGLE
Voltage Tolerance-Max 5%
Width 10.16 mm

LM317AT/NOPB Related Parts

LM317AT/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage for the LM317AT is 40V, but it's recommended to keep it below 35V for reliable operation.

  • The output voltage of the LM317AT can be adjusted by using a resistor divider network between the output and adjustment pins. The formula to calculate the output voltage is Vout = 1.25 x (1 + R2/R1).

  • The LM317AT requires a minimum load current of 3.5mA to maintain regulation. If the load current is less than this, the output voltage may not be regulated properly.

  • No, the LM317AT is designed to regulate positive voltages only. If you need a negative voltage regulator, you should use a different device, such as the LM337.

  • To protect the LM317AT from overheating, ensure that it is properly heat-sinked, and that the input voltage is not excessive. You can also use a thermal shutdown circuit to turn off the regulator if it overheats.