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LT8641IUDC#PBF - Analog Devices

Description: Switching Voltage Regulators 65V, 3.5A Sync Buck Silent Switcher w/ 2

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LT8641IUDC#PBF - Analog Devices - PCB symbol
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LT8641IUDC#PBF - Analog Devices PCB footprint - Other - Other - 18-Lead (3mm × 4mm) Plastic QFN
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LT8641IUDC#PBF - Analog Devices - 3D model - Other - 18-Lead (3mm × 4mm) Plastic QFN
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LT8641IUDC#PBF Details

  • Manufacturer Part Number:

    LT8641IUDC#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-20/18

  • Pin Count:

    18

  • Manufacturer Package Code:

    05-08-1956

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    65 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    6 V

  • JESD-30 Code:

    R-PQCC-N18

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3.5 A

  • Output Voltage-Max:

    25 V

  • Output Voltage-Min:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HWQCCN

  • Package Equivalence Code:

    LCC18/20,.12X.16,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

LT8641IUDC#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LT8641IUDC is 42V, but it's recommended to keep it below 36V for optimal performance and reliability.
  • To minimize EMI, keep the input and output capacitors close to the IC, use a solid ground plane, and keep the high-current paths short and direct. Also, consider using a shielded inductor and orienting the IC to minimize radiation.
  • The recommended PCB footprint for the LT8641IUDC is a 4-layer board with a solid ground plane, and a thermal pad connected to the exposed pad of the IC. The footprint should also include a clearance area around the IC to prevent thermal conduction.
  • To select the right inductor for the LT8641IUDC, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current of at least 2x the maximum output current, and a DC resistance of less than 100mΩ.
  • The thermal derating curve for the LT8641IUDC is typically provided in the datasheet, but it can also be obtained from the manufacturer's application notes or through direct communication with the manufacturer. The curve shows the maximum power dissipation vs. temperature, and is used to determine the maximum allowable power dissipation at a given temperature.

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LT8641IUDC#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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