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LTC3544EUD#PBF - Analog Devices

Description: LTC3544EUD#PBF, Quad Switching Regulator, Buck Controller, 0.3A, Adjustable, 2250 kHz, 16-Pin QFN EP

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LTC3544EUD#PBF - Analog Devices - PCB symbol
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LTC3544EUD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF(QFN)
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LTC3544EUD#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UF(QFN)
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LTC3544EUD#PBF Details

  • Manufacturer Part Number:

    LTC3544EUD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 3 MM, LEAD FREE, PLASTIC, MO220WEED-2, QFN-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1691

  • 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:

    FREQUENCY MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.25 V

  • Input Voltage-Nom:

    3.6 V

  • JESD-30 Code:

    S-PQCC-N16

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.8 A

  • Output Voltage-Min:

    0.8 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

  • Supply Current-Max (Isup):

    1.1 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2700 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    3 mm

LTC3544EUD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3544EUD 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. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. Choose an inductor with a saturation current rating above the peak current of the converter, and a DC resistance that minimizes losses. Ferrite or iron powder cores are suitable for the LTC3544EUD.
  • The maximum ambient temperature for the LTC3544EUD is 85°C. However, the junction temperature (TJ) should not exceed 125°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • Yes, the LTC3544EUD can be used in a synchronous buck configuration. This can improve efficiency by reducing the power losses in the external Schottky diode. However, ensure that the external FET is properly selected and driven to avoid shoot-through currents.
  • To troubleshoot the LTC3544EUD, start by verifying the input voltage, output voltage, and feedback voltage. Check for proper component selection, PCB layout, and soldering. Use an oscilloscope to inspect the waveforms and identify any anomalies. Consult the datasheet and application notes for guidance.

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LTC3544EUD#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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Part Image LTC3544EUD Analog Devices Inc

Switching Regulator, Current-mode, 0.8A, 2700kHz Switching Freq-Max, CMOS, PQCC16