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LTC3777ILXE#PBF - Analog Devices

Description: 150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller + Switching Bias Supply

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LTC3777ILXE#PBF - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - LXE Package
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LTC3777ILXE#PBF Details

  • Manufacturer Part Number:

    LTC3777ILXE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LQFP-48

  • Pin Count:

    48

  • Manufacturer Package Code:

    05-08-1832

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2018-01-25

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    150 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    S-PQFP-G48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    150 V

  • Output Voltage-Min:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLFQFP

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, HEAT SINK/SLUG, LOW PROFILE, FINE PITCH

  • Seated Height-Max:

    1.6 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    550 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    7 mm

LTC3777ILXE#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC3777 is 60V, but it's recommended to keep it below 50V for reliable operation.
  • To optimize the layout, keep the input capacitors close to the IC, use a solid ground plane, and keep the high-current paths short and wide. Also, ensure that the thermal pad is connected to a solid ground plane.
  • The recommended input capacitor type is a low-ESR ceramic capacitor, such as X5R or X7R, with a voltage rating of at least 2x the maximum input voltage.
  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout x ESL) / (Cout x fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
  • The maximum ambient temperature for the LTC3777 is 85°C, but it's recommended to keep it below 70°C for reliable operation.

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LTC3777ILXE#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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