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LTC4557EUD#PBF - Analog Devices

Description: Switching Voltage Regulators SIM Pwr Supply in QFN Package

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LTC4557EUD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UD Package 16-Lead Plastic QFN (3mm × 3mm
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LTC4557EUD#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - UD Package 16-Lead Plastic QFN (3mm × 3mm
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LTC4557EUD#PBF Details

  • Manufacturer Part Number:

    LTC4557EUD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 3 MM, PLASTIC, MO-220WEED-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

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    POWER SUPPLY SUPPORT CIRCUIT

  • JESD-30 Code:

    S-PQCC-N16

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • 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 Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    1.2 V

  • Supply Voltage-Nom (Vsup):

    1.8 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • 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:

    3 mm

LTC4557EUD#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces short and away from each other to minimize noise coupling.
  • Use a soft-start circuit to limit the inrush current during power-up. For power-down, ensure that the enable pin is pulled low before the power supply is removed to prevent unwanted switching.
  • The maximum operating temperature range for the LTC4557EUD is -40°C to 125°C. However, the device's performance may degrade at extreme temperatures, so it's essential to consider thermal management in the system design.
  • Use a shielded enclosure, keep the PCB layout compact, and use a common-mode choke or ferrite bead to filter the output. Additionally, ensure that the input and output cables are properly shielded and routed away from each other.
  • The recommended input capacitance value is 10uF to 22uF, depending on the input voltage and frequency. A larger capacitance value can help reduce input ripple, but may increase the startup time.

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LTC4557EUD#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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