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LTC3546IUFD#PBF - Analog Devices

Description: Linear Technology LTC3546IUFD#PBF, Dual Step Down DC-DC Converter, 2A, 0.6 → 5 V, 28-Pin QFN

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LTC3546IUFD#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3546IUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 28-Lead (4mm × 5mm) Plastic QFN
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LTC3546IUFD#PBF - Analog Devices - 3D model - Quad Flat No-Lead - 28-Lead (4mm × 5mm) Plastic QFN
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LTC3546IUFD#PBF Details

  • Manufacturer Part Number:

    LTC3546IUFD#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

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 5V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.25 V

  • Input Voltage-Nom:

    3.6 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

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    5 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • 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:

    PHASE-SHIFT

  • Switching Frequency-Max:

    4000 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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

LTC3546IUFD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3546IUFD 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.
  • The compensation network for the LTC3546IUFD involves selecting the right values for the compensation resistors and capacitors. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the specific application and desired performance. It's also important to consider the output capacitor's ESR and the input capacitor's ESL when designing the compensation network.
  • The maximum input voltage that the LTC3546IUFD can handle is 15V. Exceeding this voltage can damage the IC. It's recommended to add input voltage protection, such as a voltage regulator or a TVS diode, to prevent damage from voltage spikes or surges.
  • To ensure the LTC3546IUFD operates within its safe operating area (SOA), it's essential to monitor the input voltage, output current, and junction temperature. The IC should be operated within the recommended operating conditions, and the thermal design should be optimized to prevent overheating. It's also important to follow the recommended PCB layout and thermal management guidelines.
  • The recommended thermal management for the LTC3546IUFD involves using a heat sink or a thermal pad to dissipate heat away from the IC. The thermal design should be optimized to keep the junction temperature below 125°C. A thermal interface material (TIM) can be used to improve the thermal conductivity between the IC and the heat sink or thermal pad.

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LTC3546IUFD#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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