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A7986ATR - STMicroelectronics

Description: Voltage Regulators - Switching Regulators 3A Step-Down REG 3.7A 4.5V to 38V

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A7986ATR - STMicroelectronics - PCB symbol
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PCB Footprints
A7986ATR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HSOP8
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A7986ATR - STMicroelectronics - 3D model - Small Outline Packages - HSOP8
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A7986ATR Details

  • Manufacturer Part Number:

    A7986ATR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    HSOP-8

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Additional Feature:

    ADJUSTABLE OUTPUT VOLTAGE RANGE FROM 0.6 VOLT TO 38 VOLT

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    38 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5.2 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.7 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

A7986ATR Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and to keep the high-current paths as short as possible. Additionally, it's recommended to use a common mode choke and a shielded inductor to reduce EMI.
  • To optimize the A7986ATR for low standby power consumption, ensure that the EN pin is properly driven to disable the device when not in use. Additionally, use a low-ESR capacitor for the VCC pin and minimize the voltage regulator's quiescent current.
  • The maximum allowed voltage on the VIN pin is 30V, but it's recommended to keep it below 28V to ensure reliable operation and to prevent damage to the device.
  • Check the input voltage, output voltage, and feedback voltage to ensure they are within the recommended ranges. Verify that the feedback resistors are correctly connected and that the output capacitor is of sufficient value. Also, check for any signs of overheating or excessive current draw.
  • The A7986ATR is rated for operation up to 150°C, but it's recommended to derate the device's performance at high temperatures. Ensure proper thermal management, such as using a heat sink, to prevent overheating and ensure reliable operation.

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A7986ATR 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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