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LM317KCE3 - Texas Instruments

Description: IC REG LINEAR ADJ 1.5A TO220-3

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LM317KCE3 - Texas Instruments PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - KCS0003B
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LM317KCE3 - Texas Instruments  - 3D model - Transistor Outline, Vertical - KCS0003B
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LM317KCE3 Details

  • Manufacturer Part Number:

    LM317KCE3

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SFM

  • Package Description:

    PLASTIC, TO-220, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    3 V

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    R-PSFM-T3

  • Length:

    10.16 mm

  • 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

  • Output Current1-Max:

    1.5 A

  • Output Voltage1-Max:

    37 V

  • Output Voltage1-Min:

    1.25 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SFM

  • Package Equivalence Code:

    SIP3,.1TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    22.86 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Width:

    4.51 mm

LM317KCE3 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM317KCE3 is 40V. However, it's recommended to keep the input voltage at least 3V higher than the desired output voltage to ensure proper regulation.
  • While the LM317KCE3 can handle up to 1.5A of output current, it's not recommended for high-current applications due to thermal limitations. For high-current applications, consider using a heat sink or a more suitable regulator like the LM338.
  • The output voltage of the LM317KCE3 can be adjusted by using a resistive divider network between the output and adjustment pins. The formula to calculate the output voltage is Vout = 1.25V * (1 + R2/R1), where R1 and R2 are the resistors in the divider network.
  • The LM317KCE3 requires a minimum load current of 3.5mA to regulate properly. If the load current is less than this, the output voltage may not be stable.
  • No, the LM317KCE3 is a linear regulator and is not suitable for switching regulator applications. It's designed to operate in a continuous conduction mode and may not be able to handle the high-frequency switching required in switching regulators.

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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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