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APM81815KNBJTR - Allegro Microsystems

Description: Buck Switching Regulator IC Positive Adjustable 1 Output 1.5A 24-PowerFQFN Module, 21 Leads

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APM81815KNBJTR - Allegro Microsystems - PCB symbol
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PCB Footprints
APM81815KNBJTR - Allegro Microsystems PCB footprint - Other - Other - 24-Lead 4 mm × 4 mm QFN (Suffix NB)
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3D Models
APM81815KNBJTR - Allegro Microsystems - 3D model - Other - 24-Lead 4 mm × 4 mm QFN (Suffix NB)
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APM81815KNBJTR Details

  • Manufacturer Part Number:

    APM81815KNBJTR

  • Brand Name:

    Allegro

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-24

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    8

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    72 V

  • Input Voltage-Min:

    5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XQCC-N24

  • Length:

    4 mm

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Max:

    3.366 V

  • Output Voltage-Min:

    3.234 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HQCCN

  • Package Equivalence Code:

    LCC24,.15SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    2.16 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2400 kHz

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

APM81815KNBJTR Frequently Asked Questions (FAQs)

  • Allegro provides a recommended layout guide in their application note AN296067, which includes thermal pad connection, component placement, and copper pour guidelines.
  • The APM81815 has a flexible power sequencing scheme, which can be configured using external resistors and capacitors. Allegro provides a detailed guide in their application note AN296068, including examples and calculation formulas.
  • Although the datasheet specifies a maximum input voltage rating as 5.5V, Allegro recommends limiting the input voltage to 5V to ensure reliable operation and to avoid overstressing the internal voltage regulator.
  • Yes, the output voltage can be adjusted using external resistors. Allegro provides a calculation formula and examples in their datasheet and application notes.
  • The PG signal is an open-drain output that indicates when the output voltage is within regulation. You can connect it to a microcontroller or other logic device to monitor the power status. Allegro recommends using a pull-up resistor to ensure proper operation.

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APM81815KNBJTR Overview

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