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LTM4638IY - Analog Devices

Description: 20VIN, 15A Step-Down DC/DC µModule Regulator

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LTM4638IY - Analog Devices PCB footprint - BGA - BGA - 49-Ball- Chip Scale Package Ball Grid Array [CSP_BGA] 6.25mm × 6.25mm × 5.07mm
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LTM4638IY - Analog Devices  - 3D model - BGA - 49-Ball- Chip Scale Package Ball Grid Array [CSP_BGA] 6.25mm × 6.25mm × 5.07mm
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LTM4638IY Details

  • Manufacturer Part Number:

    LTM4638IY

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2019-08-20

  • 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-PBGA-B49

  • JESD-609 Code:

    e0

  • 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 Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    0.6 V

  • Output Voltage-Nom:

    1.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    FBGA

  • Package Equivalence Code:

    BGA49,7X7,32

  • Package Shape:

    SQUARE

  • Package Style:

    GRID ARRAY, FINE PITCH

  • Seated Height-Max:

    5.36 mm

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    600 kHz

  • Technology:

    HYBRID

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    BOTTOM

  • Width:

    6.25 mm

LTM4638IY Frequently Asked Questions (FAQs)

  • The maximum output current of the LTM4638IY is 3A per channel, making it suitable for high-power applications.
  • To minimize noise and EMI, it is recommended to follow a star-ground configuration, keep the input and output capacitors close to the device, and use a solid ground plane. Additionally, use a shielded inductor and keep the switching node (SW) away from sensitive nodes.
  • A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the input capacitor. This helps to reduce input ripple and improve overall system performance.
  • The output voltage of the LTM4638IY can be programmed using an external resistor divider network connected to the VOUT pin. The output voltage can be calculated using the formula: VOUT = 0.8V x (R1 + R2) / R2.
  • The LTM4638IY has a thermal derating of 2.5W/°C above 30°C. This means that the maximum power dissipation decreases by 2.5W for every degree Celsius above 30°C.

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LTM4638IY 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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Part Image LTM4638IY#PBF Analog Devices Inc

Switching Regulator, Current-mode, 600kHz Switching Freq-Max, Hybrid, PBGA49