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LTC4279IUFD#TRPBF - Analog Devices

Description: IC POE CNTRL 1 CHANNEL 20QFN

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LTC4279IUFD#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC4279IUFD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFD - 20-Lead Plastic QFN (4mm x 5mm)
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3D Models
LTC4279IUFD#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UFD - 20-Lead Plastic QFN (4mm x 5mm)
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LTC4279IUFD#TRPBF Details

  • Manufacturer Part Number:

    LTC4279IUFD#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1711

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • JESD-30 Code:

    R-PQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.2X.16,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max:

    57 V

  • Supply Voltage-Min:

    45 V

  • Supply Voltage-Nom:

    54 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

  • uPs/uCs/Peripheral ICs Type:

    PSE CONTROLLER

LTC4279IUFD#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC4279IUFD involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
  • To ensure stability, make sure the input and output capacitors are of high quality and have low ESR. Also, ensure the PCB layout is well-designed, and the input and output voltage rails are well-bypassed. Additionally, the datasheet recommends a minimum output capacitance of 10uF to ensure stability.
  • The maximum input voltage that the LTC4279IUFD can handle is 28V. Exceeding this voltage may damage the IC.
  • The LTC4279IUFD is rated for operation from -40°C to 125°C. However, the IC's performance may degrade at high temperatures, and the maximum junction temperature should not exceed 150°C.
  • The output voltage of the LTC4279IUFD can be calculated using the formula: Vout = (R1/R2) * (Vin - Vref), where R1 and R2 are the resistors in the feedback network, Vin is the input voltage, and Vref is the reference voltage (typically 1.2V).

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LTC4279IUFD#TRPBF 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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