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LM2678SX-12/NOPB - Texas Instruments

Description: Switching Voltage Regulators 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125

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LM2678SX-12/NOPB - Texas Instruments PCB footprint - Other - Other - KTW0007B_2024-2
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LM2678SX-12/NOPB Details

  • Manufacturer Part Number:

    LM2678SX-12/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    8 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PSSO-G7

  • JESD-609 Code:

    e3

  • Length:

    10.16 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    7

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5 A

  • Output Voltage-Max:

    37 V

  • Output Voltage-Min:

    1.23 V

  • Output Voltage-Nom:

    12 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SMSIP7H,.55,50TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    245

  • Seated Height-Max:

    4.79 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    260 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    SINGLE

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

    30

  • Width:

    8.64 mm

LM2678SX-12/NOPB Frequently Asked Questions (FAQs)

  • The maximum input voltage is 40V, but it's recommended to keep it below 30V for reliable operation.
  • To ensure stability, use a minimum output capacitance of 22uF, and ensure the ESR (Equivalent Series Resistance) is less than 1 ohm. Also, use a low-ESR capacitor for the input filter capacitor.
  • The maximum output current is 3A, but it's recommended to keep it below 2.5A for reliable operation and to prevent overheating.
  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout x ESR) / (f x C), where Iout is the output current, ESR is the equivalent series resistance of the output capacitor, f is the switching frequency, and C is the output capacitance.
  • The EN pin is used to enable or disable the regulator. When the EN pin is pulled low, the regulator is disabled, and when it's pulled high, the regulator is enabled.

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LM2678SX-12/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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