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L4972AD - STMicroelectronics

Description: L4972AD, Switching Regulator, Buck Controller, 2A, Adjustable, 5.1 → 40 V, 200 kHz, 20-Pin SO

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L4972AD - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - L2726
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L4972AD - STMicroelectronics  - 3D model - Small Outline Packages - L2726
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L4972AD Details

  • Manufacturer Part Number:

    L4972AD

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    PLASTIC, SO-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    50 V

  • Input Voltage-Min:

    15 V

  • Input Voltage-Nom:

    35 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3.5 A

  • Output Voltage-Max:

    40 V

  • Output Voltage-Min:

    5.1 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    200 kHz

  • Technology:

    BCDMOS

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

L4972AD Frequently Asked Questions (FAQs)

  • The L4972AD can handle input voltages up to 40V, but it's recommended to keep it below 35V for reliable operation.
  • Choose an output capacitor with a value between 10uF to 100uF, and a voltage rating of at least 1.5 times the output voltage. A low ESR (Equivalent Series Resistance) capacitor is recommended for stability.
  • The L4972AD can operate with input voltages as low as 7V, but the output voltage regulation may not be guaranteed below 8V.
  • The L4972AD is rated for operation up to 150°C, but the maximum junction temperature should not exceed 125°C for reliable operation. Derate the output current accordingly for high-temperature operation.
  • Ensure the output capacitor is properly sized, and the input capacitor is at least 1uF. Also, keep the feedback loop components (R1, R2, and C2) close to the IC and use a low-ESR output capacitor.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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