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LTC7149IUFD#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LTC7149IUFD#PBF - DC/DC CONV, SYNC BUCK, 3MHZ, QFN-28

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LTC7149IUFD#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC7149IUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFD (28-Lead Plastic QFN 4mm x 5mm)
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LTC7149IUFD#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UFD (28-Lead Plastic QFN 4mm x 5mm)
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LTC7149IUFD#PBF Details

  • Manufacturer Part Number:

    LTC7149IUFD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1712

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM -28 TO -0.05

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    60.05 V

  • Input Voltage-Min:

    3.4 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    6.6 A

  • Output Voltage-Max:

    -28 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1080 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LTC7149IUFD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC7149IUFD involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance.
  • To ensure stability, ensure that the output capacitor is within the recommended range, the input voltage is within the specified range, and the device is operated within the recommended temperature range. Additionally, a minimum ESR of 0.1 ohms is recommended for the output capacitor.
  • The maximum ambient temperature range for the LTC7149IUFD is -40°C to 125°C. However, the device can operate up to 150°C with reduced performance.
  • Yes, the LTC7149IUFD is suitable for high-reliability applications. It is manufactured using a high-reliability process and is screened to ensure high reliability. However, it is essential to follow proper design and manufacturing practices to ensure the reliability of the final product.
  • To troubleshoot issues with the LTC7149IUFD, start by verifying the input voltage, output voltage, and current. Check for proper PCB layout, decoupling, and thermal management. Use an oscilloscope to check for oscillations or noise on the output. Consult the datasheet and application notes for guidance on troubleshooting common issues.

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LTC7149IUFD#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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