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LM2678S-3.3 - Texas Instruments

Description: IC BUCK 3.3V 5A

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LM2678S-3.3 - Texas Instruments PCB footprint - Other - Other - TO127P1435X457-8N
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LM2678S-3.3 - Texas Instruments  - 3D model - Other - TO127P1435X457-8N
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LM2678S-3.3 Details

  • Manufacturer Part Number:

    LM2678S-3.3

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    D2PAK

  • Package Description:

    TO-263, 7 PIN

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1998-04-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • 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:

    12 V

  • JESD-30 Code:

    R-PSSO-G7

  • JESD-609 Code:

    e0

  • 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:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-263

  • Package Equivalence Code:

    SMSIP7H,.55,50TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.89 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    260 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    SINGLE

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

    30

  • Width:

    8.64 mm

LM2678S-3.3 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM2678S-3.3 is 15V, but it's recommended to keep it below 12V for reliable operation.
  • The LM2678S-3.3 is rated for operation up to 125°C, but the output current and voltage regulation may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.
  • To ensure stability, make sure to use the recommended output capacitor (Cout) value and type, and keep the input capacitor (Cin) value as small as possible. Also, ensure that the PCB layout is well-designed and follows good practices for switching regulators.
  • The LM2678S-3.3 has a minimum input voltage of 7.5V, but it can be used in low-input-voltage applications with some limitations. For example, the output voltage regulation may not be as good, and the output current may be lower. It's recommended to consult the datasheet and application notes for more information.
  • The output voltage ripple of the LM2678S-3.3 can be calculated using the formula: ΔVout = (Iout * Rds(on) * fsw) / (Cout * Vout), where Iout is the output current, Rds(on) is the switch resistance, fsw is the switching frequency, Cout is the output capacitor, and Vout is the output voltage.

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LM2678S-3.3 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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For a full list of alternate parts for LM2678S-3.3, check out Findchips.com