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LTM4644MPY#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LTM4644MPY#PBF - DC/DC CONVERTER, BUCK, 1MHZ, BGA-77

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LTM4644MPY#PBF - Analog Devices PCB footprint - BGA - BGA - BGA Package 77-Lead (15.00mm × 9.00mm × 5.01mm)
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LTM4644MPY#PBF - Analog Devices  - 3D model - BGA - BGA Package 77-Lead (15.00mm × 9.00mm × 5.01mm)
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LTM4644MPY#PBF Details

  • Manufacturer Part Number:

    LTM4644MPY#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    BGA-77

  • Pin Count:

    77

  • Manufacturer Package Code:

    05-08-1900

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Additional Feature:

    OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 5.5V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    14 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PBGA-B77

  • JESD-609 Code:

    e1

  • Length:

    15 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    4

  • Number of Terminals:

    77

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Current-Max:

    4 A

  • Output Voltage-Max:

    1.523 V

  • Output Voltage-Min:

    1.477 V

  • Output Voltage-Nom:

    1.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    BGA

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY

  • Peak Reflow Temperature (Cel):

    245

  • Seated Height-Max:

    5.21 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1300 kHz

  • Technology:

    HYBRID

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Silver/Copper (Sn96.5Ag3.0Cu0.5)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    9 mm

LTM4644MPY#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. The device's thermal pad should be connected to the ground plane using multiple thermal vias.
  • Ensure that the input voltage rises monotonically and does not droop during start-up. A soft-start circuit can be used to control the input voltage rise time.
  • The maximum capacitive load is not explicitly stated in the datasheet, but as a general rule, it's recommended to limit the capacitive load to 10nF or less to ensure stability.
  • Yes, the LTM4644 is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. Ensure that the device is properly heatsinked and follow the recommended thermal design guidelines.
  • Check the PCB layout for noise coupling and ensure that the input and output capacitors are properly decoupled. Verify that the device is properly heatsinked and that the thermal pad is connected to the ground plane.

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LTM4644MPY#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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