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LM317AMDT - Texas Instruments

Description: LM317A adjustable 1.5A regulator TO-252

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LM317AMDT Details

  • Manufacturer Part Number:

    LM317AMDT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-252

  • Package Description:

    TO-252, DPAK-3

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • 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-PSSO-G2

  • JESD-609 Code:

    e0

  • Length:

    6.58 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:

    2

  • 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

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-252

  • Package Equivalence Code:

    SMSIP3H,.38,90TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    2.38 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.285 mm

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    5%

  • Width:

    6.1 mm

LM317AMDT Frequently Asked Questions (FAQs)

  • The minimum input voltage required for the LM317AMDT 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 LM317AMDT can supply is 1.5A. However, it's recommended to derate the current to 1A or less to ensure reliable operation.
  • The output voltage of the LM317AMDT can be adjusted by using a resistive divider network between the output and the adjust pin. The output voltage can be calculated using the formula: Vout = 1.25 * (1 + R2/R1).
  • The thermal shutdown temperature of the LM317AMDT is 150°C. The device will shut down if the junction temperature exceeds this value.

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LM317AMDT 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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