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LT4276AIUFD#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LT4276AIUFD#PBF - POE PD CTRL, FORWARD/FLYBACK, 60V, QFN28

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LT4276AIUFD#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT4276AIUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 28-Lead Plastic QFN (4mm × 5mm)
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LT4276AIUFD#PBF - Analog Devices - 3D model - Quad Flat No-Lead - 28-Lead Plastic QFN (4mm × 5mm)
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LT4276AIUFD#PBF Details

  • Manufacturer Part Number:

    LT4276AIUFD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1712

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    CONSTANT FREQUENCY

  • Input Voltage-Max:

    60 V

  • Input Voltage-Nom:

    40 V

  • JESD-30 Code:

    R-PQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    320 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

LT4276AIUFD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT4276 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated ground plane is recommended.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the input and output capacitors are of high quality and have low ESR. Additionally, a minimum of 10uF input capacitance is recommended.
  • The maximum ambient temperature range for the LT4276 is -40°C to 125°C. However, the device can operate up to 150°C with derating.
  • Yes, the LT4276 is suitable for high-reliability applications. It is manufactured using a high-reliability process and is screened to ensure high reliability. However, it is recommended to follow the recommended operating conditions and design guidelines to ensure optimal performance.
  • To troubleshoot issues with the LT4276, start by checking the input and output voltages, and ensuring that the device is properly powered. Check for any signs of overheating, and verify that the PCB layout and component values are correct. If the issue persists, consult the datasheet and application notes for further guidance.

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LT4276AIUFD#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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