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LTC3521IUF#PBF - Analog Devices

Description: Switching Voltage Regulators 1A Buck-Boost and Dual 600mA Buck Synchronous DC/DC Converters

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LTC3521IUF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm)_1
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LTC3521IUF#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm)_1
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LTC3521IUF#PBF Details

  • Manufacturer Part Number:

    LTC3521IUF#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, MO-220WGGD, QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1697

  • 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 1.8 TO 5.25 V; ALSO OPERATES IN CURRENT MODE

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    1.8 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:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.25 V

  • Output Voltage-Min:

    1.8 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-BOOST

  • Switching Frequency-Max:

    1350 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

LTC3521IUF#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC3521IUF is 18V. Exceeding this voltage may damage the device.
  • To ensure the stability of the output voltage, it is recommended to use a minimum output capacitance of 10uF and a maximum ESR of 1 ohm. Additionally, the output voltage should be decoupled with a 10nF ceramic capacitor.
  • The minimum input voltage required for the LTC3521IUF to operate is 2.5V. However, the device can operate down to 2.2V with reduced performance.
  • The LTC3521IUF is rated for operation up to 125°C. However, the device's performance may degrade at high temperatures, and the output voltage may droop. It is recommended to derate the output current at high temperatures.
  • To synchronize the switching frequency of multiple LTC3521IUF devices, connect the SYNC pin of each device to a common clock signal. The clock signal should be a square wave with a frequency equal to the desired switching frequency.

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LTC3521IUF#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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