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LT3840IUFE#TRPBF - Analog Devices

Description: Wide Input Range Synchronous Regulator Controller with Accurate Current Limit

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LT3840IUFE#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3840IUFE#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - LFCSP:LEADFRM CHIP SCALE(H=0.8mm)
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LT3840IUFE#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - LFCSP:LEADFRM CHIP SCALE(H=0.8mm)
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LT3840IUFE#TRPBF Details

  • Manufacturer Part Number:

    LT3840IUFE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-38

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1750

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    2.5 V

  • JESD-30 Code:

    R-PQCC-N38

  • JESD-609 Code:

    e3

  • Length:

    6 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Output Voltage-Min:

    1.25 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC38,.16X.24,16

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.03 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    320 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LT3840IUFE#TRPBF Frequently Asked Questions (FAQs)

  • The recommended PCB layout for the LT3840IUFE can be found in the LT3840 demo board manual (DC1669A) available on the Analog Devices website. It provides a detailed layout guide, including component placement, thermal management, and routing considerations.
  • To select the right inductor for the LT3840IUFE, consider the following factors: inductance value, DC resistance, saturation current, and core material. The datasheet provides a recommended inductor value range, and the LT3840 demo board manual (DC1669A) provides more detailed guidance on inductor selection.
  • The maximum ambient temperature for the LT3840IUFE is 85°C, as specified in the datasheet. However, the device can operate at higher temperatures with derating, and the junction temperature should not exceed 150°C.
  • Yes, the LT3840IUFE is available in a variety of grades, including the 'I' grade for industrial temperature range (-40°C to 85°C) and the 'H' grade for high-reliability applications. Additionally, the device is AEC-Q100 qualified for automotive applications.
  • To troubleshoot common issues with the LT3840IUFE, refer to the datasheet's troubleshooting section and the LT3840 demo board manual (DC1669A). Additionally, Analog Devices provides application notes and technical support resources to help diagnose and resolve issues.

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LT3840IUFE#TRPBF 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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