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LTC4279IS#PBF - Analog Devices

Description: Power Switch ICs - POE / LAN 1x Port PoE/PoE+/ LTPoE++ PSE Cntr

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LTC4279IS#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC4279IS#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S Package 16-Lead Plastic Small Outline (Narrow .150 Inch)
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3D Models
LTC4279IS#PBF - Analog Devices - 3D model - Small Outline Packages - S Package 16-Lead Plastic Small Outline (Narrow .150 Inch)
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LTC4279IS#PBF Details

  • Manufacturer Part Number:

    LTC4279IS#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1610 (S16)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    9.906 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Seated Height-Max:

    1.752 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:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    QUAD

  • Width:

    3.899 mm

  • uPs/uCs/Peripheral ICs Type:

    PSE CONTROLLER

LTC4279IS#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power lines. Avoid routing sensitive analog signals near the switching node.
  • Use a soft-start circuit to limit the inrush current during startup, and ensure the input voltage ramps up slowly. During shutdown, use a controlled shutdown sequence to prevent voltage spikes and ensure the IC remains within its SOA.
  • A low-ESR ceramic capacitor (X5R or X7R dielectric) with a value of 10uF to 22uF is recommended. The capacitor should be placed close to the IC and connected between the VIN pin and GND.
  • Choose an inductor with a high saturation current rating, low DC resistance, and a core material with low core loss. The inductor value should be selected based on the desired output voltage, input voltage, and switching frequency.
  • Use a thermal pad or a heat sink with a thermal interface material to dissipate heat. Ensure good airflow around the IC, and consider using a thermal shield or a metal core PCB to reduce thermal resistance.

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LTC4279IS#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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