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LTC3850IUFD#TRPBF - Analog Devices

Description: Dual, 2-Phase Synchronous Step-Down Switching Controller 28-Lead (4mm × 5mm) Plastic QFN –40°C to 85°C

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LTC3850IUFD#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3850IUFD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFD 28-Lead Plastic QFN (4mm × 5mm)
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LTC3850IUFD#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UFD 28-Lead Plastic QFN (4mm × 5mm)
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LTC3850IUFD#TRPBF Details

  • Manufacturer Part Number:

    LTC3850IUFD#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:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.16X.2,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    860 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4 mm

LTC3850IUFD#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3850IUFD involves keeping the high current paths short and wide, using a solid ground plane, and placing the input capacitors close to the IC. A 4-layer board with a dedicated power plane is recommended. Refer to the Analog Devices application note AN136 for more details.
  • The selection of external components such as inductors, capacitors, and resistors depends on the specific application requirements. Refer to the datasheet and application notes for guidelines on component selection. Additionally, Analog Devices provides a Power Management Design Tool that can help with component selection and simulation.
  • The maximum ambient temperature for the LTC3850IUFD is 125°C. However, the junction temperature (TJ) should not exceed 150°C. Refer to the datasheet for thermal management guidelines to ensure reliable operation.
  • Yes, the LTC3850IUFD is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard and is available in a variety of grades, including the 'MP' grade for automotive applications. Refer to the datasheet and Analog Devices' quality and reliability documentation for more information.
  • Troubleshooting issues with the LTC3850IUFD involves identifying the symptoms, checking the PCB layout and component selection, and verifying the input and output voltages. Refer to the datasheet and application notes for troubleshooting guidelines. Additionally, Analog Devices provides a support team and online resources to help with troubleshooting.

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LTC3850IUFD#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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