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LTM4644MPY - Analog Devices

Description: Switching Voltage Regulators 4x DC/DC Module Reg w/ Config 4A Out

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

  • Manufacturer Part Number:

    LTM4644MPY

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • 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:

    e0

  • 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

  • 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/Lead (Sn/Pb)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

  • Width:

    9 mm

LTM4644MPY Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias connecting the top layer to the ground plane is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
  • To ensure reliable start-up and shutdown, it is recommended to add a soft-start circuit to limit the inrush current and prevent voltage drops. Additionally, a shutdown pin can be used to disable the module during power-down.
  • The LTM4644MPY can drive a maximum capacitive load of 100nF. Exceeding this limit may cause instability or oscillations in the output voltage.
  • To troubleshoot output voltage deviations or oscillations, check the PCB layout for noise coupling, ensure proper decoupling capacitors are used, and verify that the input voltage is within the recommended range. Also, check for any signs of overheating or thermal shutdown.
  • The LTM4644MPY is rated for operation up to 125°C. However, it is recommended to derate the output current and ensure proper heat sinking to prevent overheating in high-temperature environments.

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LTM4644MPY 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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