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LTC3649IUFD#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LTC3649IUFD#PBF - DC-DC Switching Sync- Buck (Step Down) Regulator, Adj., 3.1V-60Vin, 0V-59.5V/4A out, 1 MHz, QFN-28

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PCB Footprints
LTC3649IUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - QFN-28_2020
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3D Models
LTC3649IUFD#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - QFN-28_2020
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LTC3649IUFD#PBF Details

  • Manufacturer Part Number:

    LTC3649IUFD#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

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    3.1 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:

    60 V

  • Output Voltage-Min:

    0.05 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    SOLCC28,.15,20

  • 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

  • Switching Frequency-Max:

    3000 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

LTC3649IUFD#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the VIN pin is 28V, but it's recommended to keep it below 24V for optimal performance and reliability.
  • To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating above the peak current of the converter, and a DC resistance that minimizes power loss.
  • The RUN pin is an active-high enable input that allows the user to turn the converter on and off. To use it, simply tie the RUN pin to VIN through a resistor (e.g., 10kΩ) to enable the converter, or tie it to GND to disable it.
  • The output voltage of the LTC3649 can be adjusted by changing the resistor divider network connected to the FB pin. Use the formula VOUT = 0.8V × (R1 + R2) / R2 to calculate the desired resistor values.
  • The maximum output current that the LTC3649 can deliver depends on the input voltage and the inductor selection. Typically, it can deliver up to 2A of output current, but this may vary depending on the specific application and design.

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LTC3649IUFD#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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