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LTC3769MPUF#PBF - Analog Devices

Description: Boost, SEPIC Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 24-QFN (4x4)

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LTC3769MPUF#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3769MPUF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 24-Lead Plastic QFN (4mm × 4mm)_2024
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LTC3769MPUF#PBF - Analog Devices - 3D model - Quad Flat No-Lead - 24-Lead Plastic QFN (4mm × 4mm)_2024
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LTC3769MPUF#PBF Details

  • Manufacturer Part Number:

    LTC3769MPUF#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGD-X, QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1697

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • 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:

    S-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Voltage-Max:

    60 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LTC3769MPUF#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3769 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 loop areas. A 4-layer board with a dedicated power plane and a dedicated ground plane is recommended. Additionally, it's essential to follow the layout guidelines provided in the datasheet and application notes.
  • When selecting an inductor for the LTC3769, consider the following factors: inductance value, DC resistance, saturation current, and core material. A good starting point is to choose an inductor with an inductance value between 1uH and 10uH, a DC resistance less than 100mΩ, and a saturation current greater than the peak current of the converter. The core material should be able to handle the switching frequency and peak current. Consult the datasheet and application notes for more guidance.
  • The maximum ambient temperature for the LTC3769 is 125°C, but the device can operate up to 150°C with derating. However, it's essential to consider the thermal design and ensure that the device does not exceed the maximum junction temperature (TJ) of 150°C. Consult the datasheet and thermal design guidelines for more information.
  • To troubleshoot issues with the LTC3769, start by verifying the PCB layout and component selection. Check for proper decoupling, filtering, and grounding. Use an oscilloscope to measure the switching waveforms, output voltage, and current. Consult the datasheet and application notes for troubleshooting guidelines and common pitfalls to avoid. If the issue persists, consider contacting Analog Devices' technical support for further assistance.
  • Yes, the LTC3769 is suitable for high-reliability and automotive applications. It meets the requirements for AEC-Q100 Grade 1 and is designed to operate in harsh environments. However, it's essential to follow the recommended design guidelines, testing procedures, and qualification requirements for the specific application. Consult the datasheet and Analog Devices' automotive and high-reliability resources for more information.

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LTC3769MPUF#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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