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LM317T/NOPB - Texas Instruments

Description: Texas Instruments LM317 LM317T/NOPB, Single Linear Voltage Regulator, 1.5A Adjustable 1.2 → 37 V, 3-Pin TO-220

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LM317T/NOPB - Texas Instruments PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - LM317T/NOPB
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LM317T/NOPB - Texas Instruments  - 3D model - Transistor Outline, Vertical - LM317T/NOPB
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LM317T/NOPB Details

  • Manufacturer Part Number:

    LM317T/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SFM

  • Pin Count:

    3

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • 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:

    14.99 mm

  • Line Regulation-Max (%/V):

    0.05

  • 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

  • Output Current1-Max:

    1.5 A

  • Output Voltage1-Max:

    37 V

  • Output Voltage1-Min:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-220

  • 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

LM317T/NOPB Frequently Asked Questions (FAQs)

  • 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).

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LM317T/NOPB Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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