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A7986A - STMicroelectronics

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

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A7986A - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HSOP8 package outline
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A7986A Details

  • Manufacturer Part Number:

    A7986A

  • 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

  • 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

  • Length:

    4.9 mm

  • 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):

    NOT SPECIFIED

  • 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 Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Width:

    3.9 mm

A7986A Frequently Asked Questions (FAQs)

  • The A7986A can operate from -40°C to 150°C (TJ), but the recommended operating temperature range is -20°C to 125°C (TJ) for optimal performance.
  • The A7986A requires a single 5V supply voltage (VCC) and a separate voltage supply (VREG) for the internal regulator. Ensure both supplies are decoupled with 10nF and 100nF capacitors, respectively.
  • The EN (enable) pin is an active-high input that enables or disables the device. Tie EN to VCC to enable the device or to GND to disable it. Use a pull-up resistor (e.g., 10kΩ) to ensure a clear enable signal.
  • The A7986A has a resistive divider network (R1, R2) that sets the output voltage. Calculate the required resistor values using the formula in the datasheet, and ensure the resistors are 1% tolerance or better.
  • Follow STMicroelectronics' recommended PCB layout guidelines, ensuring a solid ground plane, minimal thermal resistance, and adequate heat dissipation. Use thermal vias and a heat sink if necessary.

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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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Part Image A7986ATR STMicroelectronics

Switching Regulator, Voltage-mode, 5.2A, 1000kHz Switching Freq-Max, PDSO8