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LTC3779EFE#PBF - Analog Devices

Description: 150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller

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LTC3779EFE#PBF - Analog Devices PCB footprint - Other - Other - FE PACKAGE VARIATION: FE38(31) 38-LEAD PLASTIC TSSOP_2025-1
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LTC3779EFE#PBF - Analog Devices  - 3D model - Other - FE PACKAGE VARIATION: FE38(31) 38-LEAD PLASTIC TSSOP_2025-1
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LTC3779EFE#PBF Details

  • Manufacturer Part Number:

    LTC3779EFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-38

  • Pin Count:

    31

  • Manufacturer Package Code:

    05-08-1865

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Additional Feature:

    VOUT=(1.2-150 VOLT)

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    150 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G38

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Output Voltage-Max:

    150 V

  • Output Voltage-Min:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    550 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LTC3779EFE#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC3779 is 60V, but it's recommended to keep it below 50V for reliable operation.
  • To optimize the layout for the LTC3779, keep the high-current paths short and wide, use a solid ground plane, and place the input capacitors close to the IC. Also, ensure that the feedback network is routed away from the high-current paths.
  • The recommended output capacitor value is 10uF to 22uF, and it's recommended to use a low-ESR capacitor such as a ceramic or polymer capacitor.
  • The switching frequency of the LTC3779 is set by the RT pin, which is connected to a resistor and capacitor. The recommended values are RT = 10kΩ and CT = 1nF for a 500kHz switching frequency.
  • The maximum output current that the LTC3779 can deliver is 3.5A, but it's recommended to derate the output current based on the input voltage and output voltage to ensure reliable operation.

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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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