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LTC3899EUHF#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LTC3899EUHF#PBF - DC/DC Controller, Current Mode, 4.5V to 60V, 3 Outputs, Buck/ Buck-Boost, 835kHz, QFN-38

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LTC3899EUHF#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3899EUHF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 38-Lead Plastic QFN (5mm × 7mm)
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LTC3899EUHF#PBF - Analog Devices - 3D model - Quad Flat No-Lead - 38-Lead Plastic QFN (5mm × 7mm)
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LTC3899EUHF#PBF Details

  • Manufacturer Part Number:

    LTC3899EUHF#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-38

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1701

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES AT 10V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-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-PQCC-N38

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Output Voltage-Max:

    60 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC38,.2X.28,20

  • 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-BOOST

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

LTC3899EUHF#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3899EUHF involves keeping the high-current paths short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. A 4-layer board with a dedicated power plane and a solid ground plane is recommended. Additionally, it's essential to follow the datasheet's guidelines for thermal management and to use a thermal relief pattern for the exposed pad.
  • When selecting an inductor for the LTC3899EUHF, consider the inductor's saturation current, DC resistance, and core material. The inductor should be able to handle the peak current of the converter, and its DC resistance should be low to minimize losses. A ferrite or iron powder core inductor with a low DC resistance and high saturation current is recommended. The datasheet provides a list of recommended inductors.
  • The maximum ambient temperature for the LTC3899EUHF is 85°C. However, the junction temperature (TJ) should not exceed 125°C. The device's thermal performance can be improved by using a heat sink or a thermal interface material, and by ensuring good airflow around the device.
  • Yes, the LTC3899EUHF is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive applications and is manufactured using a high-reliability process. However, it's essential to follow the datasheet's guidelines for PCB layout, thermal management, and component selection to ensure the device's reliability in these applications.
  • When troubleshooting issues with the LTC3899EUHF, start by checking the input voltage, output voltage, and current. Verify that the device is properly configured and that the PCB layout meets the datasheet's guidelines. Use an oscilloscope to check for switching noise, ringing, or other anomalies. The datasheet provides a troubleshooting guide, and Analog Devices' support team can also provide assistance.

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LTC3899EUHF#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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