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LTM4643IY - Analog Devices

Description: Switching Voltage Regulators [Tin-Lead SnPb BGA] Ultrathin Quad Module Regulator with Configurable 3A Output Array

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LTM4643IY - Analog Devices - PCB symbol
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PCB Footprints
LTM4643IY - Analog Devices PCB footprint - BGA - BGA - BGA Package 77-Lead (15.00mm × 9.00mm × 2.42mm)-ren1
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LTM4643IY - Analog Devices - 3D model - BGA - BGA Package 77-Lead (15.00mm × 9.00mm × 2.42mm)-ren1
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LTM4643IY Details

  • Manufacturer Part Number:

    LTM4643IY

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Active

  • Package Description:

    BGA-77

  • Pin Count:

    77

  • Manufacturer Package Code:

    05-08-1559

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 3.3V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 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:

    1

  • Number of Terminals:

    77

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    3.3 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    BGA

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY

  • Seated Height-Max:

    2.62 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1200 kHz

  • Technology:

    HYBRID

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

  • Width:

    9 mm

LTM4643IY Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. The top layer should have a wide copper pour connected to the GND pin, and the bottom layer should have a solid ground plane. This layout helps to dissipate heat efficiently.
  • Use the output filter design tool provided by Analog Devices or follow the guidelines in the datasheet. A good starting point is to use a 10uH inductor and a 10uF capacitor. Adjust the values based on the specific application requirements and desired ripple and noise performance.
  • The LTM4643IY can drive up to 10uF of capacitive load. However, it's recommended to limit the capacitive load to 4.7uF or less to ensure stability and optimal performance.
  • Use a soft-start circuit to limit the inrush current during start-up. A simple RC circuit with a 1kΩ resistor and a 10uF capacitor can be used. For shutdown, use a voltage supervisor or a reset IC to ensure a clean shutdown sequence.
  • Use a low-ESR ceramic capacitor with a value of 10uF to 22uF. X5R or X7R dielectric capacitors are recommended. Avoid using electrolytic capacitors due to their high ESR and limited lifespan.

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LTM4643IY Overview

Use the download button to access the LTM4643IY schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LTM46, or try a keyword search, such as Switching Regulator or Controllers

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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