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LM317AEMPX/NOPB - Texas Instruments

Description: 1% Accurate, 1.5A Adjustable Linear Regulator with Short Circuit Protection

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PCB Footprints
LM317AEMPX/NOPB - Texas Instruments PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - DCY (R-PDSO-G4
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LM317AEMPX/NOPB - Texas Instruments  - 3D model - SOT223 (3-Pin) - DCY (R-PDSO-G4
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LM317AEMPX/NOPB Details

  • Manufacturer Part Number:

    LM317AEMPX/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-223

  • Pin Count:

    4

  • Country Of Origin:

    Mainland China, Malaysia, Thailand

  • 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-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.5 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:

    4

  • 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:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    1.8 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.3 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Voltage Tolerance-Max:

    5%

  • Width:

    3.56 mm

LM317AEMPX/NOPB Frequently Asked Questions (FAQs)

  • The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
  • You can adjust the output voltage by using a resistor divider network between the output and adjustment pins. The formula is: Vout = 1.25 x (1 + R2/R1).
  • The minimum load current is 3.5mA, but it's recommended to have a load current of at least 10mA for stable operation.
  • The LM317AEMPX/NOPB has an operating temperature range of -40°C to 125°C, but its performance may degrade at high temperatures. It's recommended to use a heat sink and ensure good airflow to keep the temperature below 85°C.
  • You can use a transient voltage suppressor (TVS) diode or a zener diode in parallel with the input capacitor to protect the regulator from input voltage transients.

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LM317AEMPX/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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