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LTM4657EY#PBF - Analog Devices

Description: 20VIN, 8A Step-Down DC/DC ?Module Regulator

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LTM4657EY#PBF - Analog Devices PCB footprint - BGA - BGA - BGA Package 49-Lead (6.25mm × 6.25mm × 3.87mm)
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LTM4657EY#PBF - Analog Devices  - 3D model - BGA - BGA Package 49-Lead (6.25mm × 6.25mm × 3.87mm)
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LTM4657EY#PBF Details

  • Manufacturer Part Number:

    LTM4657EY#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    BGA-49

  • Pin Count:

    49

  • Manufacturer Package Code:

    05-08-1573

  • Country Of Origin:

    South Korea

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    3.1 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XBGA-B49

  • JESD-609 Code:

    e1

  • Length:

    6.25 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    49

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    8 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    0.5 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    BGA

  • Package Equivalence Code:

    BGA49,7X7,32

  • Package Shape:

    SQUARE

  • Package Style:

    GRID ARRAY

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    4.21 mm

  • Supply Current-Max (Isup):

    1150 mA

  • Surface Mount:

    YES

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    HYBRID

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    6.25 mm

LTM4657EY#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the thermal pad connected to the ground plane to improve heat dissipation.
  • Use a soft-start circuit to limit the inrush current during start-up. For shutdown, ensure a controlled ramp-down of the output voltage to prevent voltage spikes.
  • Use a common-mode choke, X-capacitors, and Y-capacitors to filter EMI. Ensure the layout is optimized to minimize loop areas and reduce radiation.
  • Use a combination of capacitors and inductors to filter the output. Optimize the filter design using simulation tools and consider the output impedance of the device.
  • Ensure good thermal contact between the device and heat sink. Use a heat sink with a thermal resistance of <1°C/W and apply a thermal interface material to minimize thermal resistance.

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LTM4657EY#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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