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LTC3899EUHF#TRPBF - Analog Devices

Description: 60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller with PassThru

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LTC3899EUHF#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3899EUHF#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - LFCSP:LEADFRM CHIP SCALE_2023-6
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3D Models
LTC3899EUHF#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - LFCSP:LEADFRM CHIP SCALE_2023-6
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LTC3899EUHF#TRPBF Details

  • Manufacturer Part Number:

    LTC3899EUHF#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:

    05-08-1701

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES AT 10V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PQCC-N38

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Output Voltage-Max:

    60 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC38,.2X.28,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

LTC3899EUHF#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3899EUHF involves keeping the high current paths short and wide, using multiple vias to connect the GND pins to the ground plane, and placing the input capacitors close to the VIN pins. A 4-layer board with a dedicated ground plane is recommended. Refer to the LTC3899 demo board layout for a reference design.
  • The compensation network for the LTC3899EUHF involves selecting the right values for the RC network connected to the COMP pin. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the specific application requirements. The goal is to achieve a stable loop with adequate phase margin. Refer to the application note AN140 for more information on compensation techniques.
  • The maximum ambient temperature for the LTC3899EUHF is 105°C, but the device can operate up to 125°C with derating. Refer to the thermal derating curve in the datasheet to determine the maximum power dissipation at a given temperature.
  • Yes, the LTC3899EUHF is qualified for high-reliability applications and is available in a variety of grades, including the H-grade which is qualified for automotive and industrial applications. Refer to the product page for more information on the available grades and their corresponding specifications.
  • The LTC3899EUHF has built-in overvoltage protection (OVP) and undervoltage lockout (UVLO) features. However, additional protection may be required depending on the application. Consider using external voltage supervisors or protection devices to ensure the device is protected from voltage transients and faults.

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LTC3899EUHF#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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