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LT8637EV#WPBF - Analog Devices

Description: 42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current , 3.4V to 42V , 1A , –40°C to 125°C

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PCB Footprints
LT8637EV#WPBF - Analog Devices PCB footprint - Other - Other - LQFN Package 20-Lead (4mm × 3mm × 0.94mm)_2026-1
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3D Models
LT8637EV#WPBF - Analog Devices  - 3D model - Other - LQFN Package 20-Lead (4mm × 3mm × 0.94mm)_2026-1
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LT8637EV#WPBF Details

  • Manufacturer Part Number:

    LT8637EV#WPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LQFN-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1602

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    42 V

  • Input Voltage-Min:

    3.4 V

  • Input Voltage-Nom:

    6 V

  • JESD-30 Code:

    R-XQCC-N20

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Output Current-Max:

    5 A

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.12X.16,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.03 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    BIPOLAR

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

LT8637EV#WPBF Frequently Asked Questions (FAQs)

  • The LT8637 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 high-current paths. 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 voltage rating of at least 50V is recommended for the input capacitor. Avoid using electrolytic capacitors as they can cause oscillations.
  • To ensure stability, follow the recommended layout and component selection guidelines, and ensure that the output capacitor has a low ESR. Also, add a small ceramic capacitor (10nF to 100nF) in parallel with the output capacitor to improve stability.
  • The LT8637 can deliver up to 3A of output current, but it's recommended to keep it below 2.5A for optimal performance and reliability.

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LT8637EV#WPBF 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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