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LTC7149IUFD#TRPBF - Analog Devices

Description: Switching Voltage Regulators 60V, 4A Sync Buck Reg for Inv Outs

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LTC7149IUFD#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC7149IUFD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFD (28-Lead QFN)25
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3D Models
LTC7149IUFD#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UFD (28-Lead QFN)25
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LTC7149IUFD#TRPBF Details

  • Manufacturer Part Number:

    LTC7149IUFD#TRPBF

  • 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:

    Thailand

  • 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#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC7149IUFD#TRPBF involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
  • To ensure proper power-up and configuration, follow the recommended power-up sequence, connect the EN pin to a logic high, and configure the MODE pin according to the desired operating mode. Also, make sure to provide a stable input voltage and decouple the device with suitable capacitors.
  • The LTC7149IUFD#TRPBF has a maximum junction temperature of 125°C. To ensure reliable operation, keep the device temperature below 85°C by providing adequate heat sinking, using a thermal pad, and keeping the ambient temperature within the recommended range.
  • To troubleshoot issues, start by verifying the PCB layout, checking for proper power-up and configuration, and ensuring that the input and output capacitors are suitable. Use an oscilloscope to monitor the output voltage and current, and check for any signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting specific issues.
  • Yes, the LTC7149IUFD#TRPBF is a high-frequency device and requires proper EMI/EMC design considerations. Use a shielded enclosure, keep the device away from radiating sources, and use EMI filters or shielding on the input and output lines. Follow the recommended PCB layout and grounding practices to minimize EMI/EMC issues.

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LTC7149IUFD#TRPBF 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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