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LT8640EUDC#TRPBF - Analog Devices

Description: Switching Voltage Regulators 42V, 6A Synchronous Step-Down Silent Switcher with 2.5 A Quiescent Current

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LT8640EUDC#TRPBF - Analog Devices PCB footprint - Other - Other - UDC Package 18-Lead Plastic QFN (3mm × 4mm) (Reference LTC DWG # 05-08-1956 Rev B) Exposed Pad Varia
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LT8640EUDC#TRPBF - Analog Devices  - 3D model - Other - UDC Package 18-Lead Plastic QFN (3mm × 4mm) (Reference LTC DWG # 05-08-1956 Rev B) Exposed Pad Varia
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LT8640EUDC#TRPBF Details

  • Manufacturer Part Number:

    LT8640EUDC#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-20/18

  • Pin Count:

    18

  • Manufacturer Package Code:

    05-08-1956

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    SILENT SWITCHER

  • Input Voltage-Max:

    42 V

  • Input Voltage-Min:

    3.4 V

  • Input Voltage-Nom:

    6 V

  • JESD-30 Code:

    R-PQCC-N18

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC18/20,.12X.16,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.35 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    3 mm

LT8640EUDC#TRPBF Frequently Asked Questions (FAQs)

  • The LT8640 can handle input voltages up to 42V, but it's recommended to keep it below 36V for optimal performance and reliability.
  • To optimize the layout, keep the input and output capacitors close to the IC, use a solid ground plane, and minimize the length of the input and output traces. Also, ensure that the thermal pad is connected to a solid ground plane to improve heat dissipation.
  • A low-ESR ceramic capacitor (X5R or X7R dielectric) with a value of 10uF to 22uF is recommended for the input capacitor. This helps to filter out high-frequency noise and improve the regulator's stability.
  • The LT8640 is rated for operation up to 125°C, but its performance may degrade at high temperatures. Ensure that the device is properly heat-sinked and that the thermal pad is connected to a solid ground plane to improve heat dissipation.
  • To ensure stability, ensure that the input and output capacitors meet the recommended specifications, and that the feedback network is properly configured. Also, avoid using long, thin traces for the feedback network, as this can cause oscillations.

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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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