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L6981NDR - STMicroelectronics

Description: Switching Voltage Regulators 38 V, 1.5 A synchronous step-down converter with low quiescent current

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L6981NDR Details

  • Manufacturer Part Number:

    L6981NDR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    8

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    38 V

  • Input Voltage-Min:

    3.5 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Max:

    38 V

  • Output Voltage-Min:

    0.85 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    440 kHz

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

L6981NDR Frequently Asked Questions (FAQs)

  • The L6981NDR can handle a maximum input voltage of 38V, but it's recommended to keep it below 36V for reliable operation.
  • To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor, and add a 10nF capacitor between the VIN and EN pins.
  • The L6981NDR can operate with an input voltage as low as 6.5V, but the output voltage regulation may not be guaranteed below 7V.
  • The L6981NDR is rated for operation up to 150°C, but the maximum junction temperature should not exceed 125°C for reliable operation.
  • The output voltage of the L6981NDR can be calculated using the formula: Vout = Vref x (1 + R2/R1), where Vref is the internal reference voltage (1.25V), and R1 and R2 are the resistors in the feedback network.

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L6981NDR Overview

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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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