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LT3942EUFD#PBF - Analog Devices

Description: 36V, 2A SYNCHRONOUS BUCK-BOOST C

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LT3942EUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 28-Lead Plastic QFN (4mm × 5mm)
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LT3942EUFD#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - 28-Lead Plastic QFN (4mm × 5mm)
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LT3942EUFD#PBF Details

  • Manufacturer Part Number:

    LT3942EUFD#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

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2019-10-10

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    12 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

  • Output Current-Max:

    2 A

  • Output Voltage-Max:

    36 V

  • 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

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2100 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

LT3942EUFD#PBF Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias under the IC is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
  • Ensure that the input voltage rises monotonically and does not droop during start-up. Also, add a soft-start capacitor to the EN pin to limit the inrush current during start-up.
  • The maximum allowed input voltage ripple is 10% of the nominal input voltage. Exceeding this limit may affect the device's performance and reliability.
  • Yes, but with some limitations. The device is rated for operation up to 125°C, but the maximum junction temperature should not exceed 150°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • Check the input voltage, output load, and feedback resistors for correctness. Verify that the compensation network is properly designed and implemented. Use an oscilloscope to monitor the output voltage and check for oscillations or noise.

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LT3942EUFD#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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