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LTC3769HFE#PBF - Analog Devices

Description: 60V Low IQ Synchronous Boost Controller with PassThru

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LTC3769HFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - LTC TSSOP__
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LTC3769HFE#PBF Details

  • Manufacturer Part Number:

    LTC3769HFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4.40 MM, LEAD FREE, PLASTIC, TSSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1663 (CA)

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

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

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    4.4 mm

LTC3769HFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3769HFE involves keeping the high-frequency switching nodes (e.g., SW, VIN, and VOUT) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance. A 4-layer board with a dedicated power plane and a solid ground plane is recommended.
  • When selecting an inductor for the LTC3769HFE, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating of at least 1.5 times the maximum output current, a DC resistance of less than 100mΩ, and a core material with low core loss (e.g., ferrite or powdered iron).
  • The maximum ambient temperature for the LTC3769HFE is 105°C, but the device's junction temperature (TJ) should not exceed 125°C. Ensure proper thermal design and heat sinking to keep the junction temperature within the recommended range.
  • Yes, the LTC3769HFE is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive applications and is manufactured with a high-reliability process. However, additional testing and validation may be required for specific applications.
  • To troubleshoot issues with the LTC3769HFE, start by verifying the PCB layout, component selection, and soldering quality. Check for proper decoupling, filtering, and noise reduction. Use an oscilloscope to monitor the switching waveforms and identify any signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting and optimization.

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LTC3769HFE#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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