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LM2578AN - Texas Instruments

Description: Switching Voltage Regulators Switching Regulator 8-PDIP -40 to 125

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LM2578AN - Texas Instruments - PCB symbol
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PCB Footprints
LM2578AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - DIP_8-
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LM2578AN - Texas Instruments - 3D model - Dual-In-Line Packages - DIP_8-
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LM2578AN Details

  • Manufacturer Part Number:

    LM2578AN

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    2 V

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.59 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.75 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    3.5 mA

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    100 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

LM2578AN Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM2578AN is 40V, but it's recommended to keep it below 35V for reliable operation.
  • The LM2578AN is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Ensure proper heat sinking and thermal management to prevent overheating.
  • The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value recommended in the datasheet (e.g., 33μH for the LM2578AN-5.0). You can also use online inductor selection tools or consult with a TI engineer for specific guidance.
  • The minimum input capacitance required for stable operation is 10μF, but it's recommended to use a higher value (e.g., 22μF) to ensure stable operation and reduce input voltage ripple.
  • No, the LM2578AN is a switching regulator and not suitable for LDO applications. It requires a minimum input-to-output voltage difference (VIN - VOUT) of around 2.5V to maintain regulation.

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LM2578AN Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like LM257, or try a keyword search, such as Switching Regulator or Controllers

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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Part Image LM2578AN/NOPB Texas Instruments

Switching Regulator, 0.75A, 24kHz Switching Freq-Max, PDIP8