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LM2576WU - Microchip

Description: Buck Switching Regulator IC Positive Adjustable 1.23V 1 Output 3A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA, input 4V to 40V, Output (Max) 37V, -40°C ~ 125°C

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PCB Footprints
LM2576WU - Microchip PCB footprint - Other - Other - 5-Lead TO-263_2026
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LM2576WU - Microchip  - 3D model - Other - 5-Lead TO-263_2026
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LM2576WU Details

  • Manufacturer Part Number:

    LM2576WU

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TO-263, 5 PIN

  • Pin Count:

    5

  • Manufacturer Package Code:

    DDPAK-5

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    7

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PSSO-G5

  • JESD-609 Code:

    e3

  • Length:

    10.363 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    5

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    7.5 A

  • Output Voltage-Max:

    37 V

  • Output Voltage-Min:

    1.23 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-263

  • Package Equivalence Code:

    SMSIP5H,.6,67TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    245

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.597 mm

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    63 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.702 mm

  • Terminal Position:

    SINGLE

  • Width:

    8.7805 mm

LM2576WU Frequently Asked Questions (FAQs)

  • The LM2576WU can handle a maximum input voltage of 40V, but it's recommended to keep it below 30V for reliable operation.
  • Ensure good airflow around the device, use a heat sink if necessary, and keep the junction temperature (TJ) below 125°C. Monitor the device's thermal resistance (RθJA) and adjust the design accordingly.
  • A minimum input capacitance of 10uF is recommended to ensure stable operation, but the actual value may vary depending on the input voltage and output current requirements.
  • The LM2576WU is rated for operation up to 125°C, but its performance may degrade at high temperatures. Consider using a heat sink or a thermally-enhanced package for high-temperature applications.
  • The output voltage (Vout) can be calculated using the formula: Vout = 1.23 * (1 + R2/R1), where R1 and R2 are the feedback resistors.

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LM2576WU Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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