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LTC3421EUF#PBF - Analog Devices

Description: LTC3421 adj 3A sync SU dc-dc converter LTC3421EUF#PBF, Boost Converter, Step Up 1.5A Adjustable, 2.4 → 5.25 V, 3000 kHz, 24-Pin QFN EP

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LTC3421EUF#PBF - Analog Devices - PCB symbol
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LTC3421EUF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF (24-Lead QFN)_1
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LTC3421EUF#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UF (24-Lead QFN)_1
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LTC3421EUF#PBF Details

  • Manufacturer Part Number:

    LTC3421EUF#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    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

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    4.5 V

  • Input Voltage-Min:

    0.5 V

  • Input Voltage-Nom:

    1.2 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:

    70 °C

  • Output Current-Max:

    4.2 A

  • Output Voltage-Max:

    5.25 V

  • Output Voltage-Min:

    2.4 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:

    BOOST

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • 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

LTC3421EUF#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3421EUF#PBF involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to reduce noise and EMI.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. It's also important to decouple the input voltage with a capacitor and to use a low-ESR output capacitor. Finally, avoid using long traces and minimize the loop area of the feedback network.
  • The maximum input voltage that the LTC3421EUF#PBF can handle is 15V. Exceeding this voltage can cause damage to the IC. It's recommended to use a voltage regulator or a voltage limiter to ensure the input voltage stays within the recommended range.
  • The LTC3421EUF#PBF is rated for operation up to 125°C. However, the IC's performance and reliability may degrade at high temperatures. It's recommended to use a heat sink or a thermal management system to keep the IC temperature below 100°C. Additionally, ensure that the PCB and components are rated for high-temperature operation.
  • To troubleshoot issues with the LTC3421EUF#PBF, start by checking the input voltage and current, and ensure that the output voltage is within the expected range. Use an oscilloscope to check for oscillations or noise on the output. Check the PCB layout and component values to ensure they match the recommended values. Finally, consult the datasheet and application notes for troubleshooting guides and FAQs.

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LTC3421EUF#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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