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LM7918CT - onsemi

Description: Linear Voltage Regulators 3-Term 1A Negative Voltage Regulator

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LM7918CT - onsemi PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - LM7918CT
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LM7918CT Details

  • Manufacturer Part Number:

    LM7918CT

  • Brand Name:

    ON Semiconductor

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    TO-220AB, 3 PIN

  • Manufacturer Package Code:

    340AT

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Nom:

    2 V

  • Input Voltage Absolute-Max:

    35 V

  • Input Voltage-Max:

    33 V

  • Input Voltage-Min:

    21 V

  • JESD-30 Code:

    R-XSFM-T3

  • JESD-609 Code:

    e3

  • Line Regulation-Max:

    0.36%

  • Load Regulation-Max:

    0.36%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    18.9 V

  • Output Voltage1-Min:

    17.1 V

  • Output Voltage1-Nom:

    18 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    SFM

  • Package Equivalence Code:

    SIP3,.1TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

  • Voltage Tolerance-Max:

    5%

LM7918CT Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM7918CT is 35V, but it's recommended to keep it below 25V for reliable operation.
  • The LM7918CT is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to use a heat sink or ensure good airflow to keep the junction temperature below 125°C.
  • To ensure a stable output voltage, make sure to use a suitable input capacitor (at least 10uF) and output capacitor (at least 10uF) with low ESR, and keep the input voltage at least 2V higher than the output voltage.
  • The LM7918CT is rated for up to 1A output current, but it's recommended to derate the output current based on the ambient temperature and the input voltage. Use a heat sink or a more robust regulator for high-current applications.
  • Yes, the LM7918CT has built-in short-circuit protection, which limits the output current to prevent damage in case of a short circuit.

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