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LTC3520EUF#PBF - Analog Devices

Description: LTC3520EUF#PBF Dual Buck/Boost Converter, 1A, Adjustable, 0.8 → 5.5 V, 1200 kHz, 24-Pin QFN EP

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LTC3520EUF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF (24-Lead QFN)
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LTC3520EUF#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - UF (24-Lead QFN)
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LTC3520EUF#PBF Details

  • Manufacturer Part Number:

    LTC3520EUF#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4 X 4 MM, LEAD FREE, PLASTIC, QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1697

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    IT ALSO OPRATES IN VOLTAGE MODE; ALSO ADJUSTABLE OUTPUT FROM 2.2V TO 5.25V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.2 V

  • Input Voltage-Nom:

    3.6 V

  • JESD-30 Code:

    S-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.25 V

  • Output Voltage-Min:

    2.2 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • 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:

    BUCK

  • Switching Frequency-Max:

    1200 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • 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

LTC3520EUF#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC3520EUF is 18V, but it's recommended to keep it below 15V for optimal performance and reliability.
  • To optimize the inductor selection, consider the following factors: inductance value, DC resistance, core material, and saturation current. A good starting point is to use an inductor with an inductance value between 1uH to 10uH, and a DC resistance less than 100mΩ.
  • To minimize EMI and noise, follow these PCB layout guidelines: keep the input and output capacitors close to the IC, use a solid ground plane, and keep the high-frequency switching nodes (e.g., LX pin) away from sensitive analog nodes. Also, use a shielded inductor and orient it to minimize radiation.
  • To configure the LTC3520EUF for a specific output voltage, use the FB pin and an external resistor divider network to set the output voltage. The FB pin is connected to the output voltage through a resistor divider, and the output voltage is set by adjusting the resistor values.
  • The maximum output current that the LTC3520EUF can deliver is 2A, but it's limited by the input voltage, inductor selection, and thermal considerations. It's recommended to derate the output current based on the specific application requirements and thermal constraints.

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LTC3520EUF#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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