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LTC7817EUHF#PBF - Analog Devices

Description: 40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Synchronous Controller

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LTC7817EUHF#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC7817EUHF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 38-Lead Plastic QFN
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LTC7817EUHF#PBF - Analog Devices - 3D model - Quad Flat No-Lead - 38-Lead Plastic QFN
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LTC7817EUHF#PBF Details

  • Manufacturer Part Number:

    LTC7817EUHF#PBF

  • 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:

    05-08-1701

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2020-09-24

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PQCC-N38

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Output Voltage-Max:

    40 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    CMOS

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

LTC7817EUHF#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC7817EUHF is 42V, but it's recommended to operate within the specified input voltage range of 6.5V to 36V for optimal performance and reliability.
  • The LTC7817EUHF is a adjustable output voltage regulator, and the output voltage can be set using the resistive divider network (R1 and R2) connected to the FB pin. The output voltage can be calculated using the formula: VOUT = 0.8V x (1 + R2/R1).
  • The minimum input capacitance required for stable operation is 10uF, but it's recommended to use a higher value (e.g. 22uF) to ensure stability and reduce input voltage ripple.
  • The LTC7817EUHF is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. It's recommended to derate the output current and input voltage to ensure reliable operation in high-temperature environments.
  • To reduce the noise and ripple on the output voltage, it's recommended to use a low-ESR output capacitor (e.g. ceramic or polymer capacitors) and to add a noise-reducing capacitor (e.g. 10nF) between the VOUT and GND pins.

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LTC7817EUHF#PBF 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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