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LTC3859AEUHF#PBF - Analog Devices

Description: Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller with Improved Burst Mode Operation

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LTC3859AEUHF#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3859AEUHF#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UHF (38-Lead QFN)
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3D Models
LTC3859AEUHF#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UHF (38-Lead QFN)
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LTC3859AEUHF#PBF Details

  • Manufacturer Part Number:

    LTC3859AEUHF#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    5 X 7 MM, LEAD FREE, PLASTIC, MO-220WHKD, QFN-38

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1701

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 24V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    38 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:

    24 V

  • Output Voltage-Min:

    0.8 V

  • Output Voltage-Nom:

    5.4 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • 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:

    PHASE-SHIFT

  • Switching Frequency-Max:

    835 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • 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:

    5 mm

LTC3859AEUHF#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3859AEUHF#PBF involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to reduce noise and EMI.
  • The selection of input and output capacitors for the LTC3859AEUHF#PBF depends on the specific application requirements. In general, it's recommended to use low-ESR capacitors with a high ripple current rating. For the input capacitor, a value of 10uF to 22uF is typical, while for the output capacitor, a value of 22uF to 47uF is typical. The capacitor type can be ceramic, tantalum, or electrolytic, depending on the specific requirements.
  • The LTC3859AEUHF#PBF can operate in an ambient temperature range of -40°C to 125°C. However, the maximum junction temperature (TJ) should not exceed 150°C. It's recommended to ensure good thermal design and heat sinking to keep the junction temperature within the specified range.
  • Yes, the LTC3859AEUHF#PBF is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process and is qualified to the AEC-Q100 standard for automotive applications. However, it's recommended to consult with Analog Devices Inc for specific requirements and qualifications.
  • Common issues with the LTC3859AEUHF#PBF can be troubleshooted by checking the PCB layout, ensuring proper decoupling and bypassing, and verifying the input and output capacitor values. Additionally, it's recommended to check the voltage and current waveforms using an oscilloscope to identify any anomalies. Consult the datasheet and application notes for more detailed troubleshooting guidelines.

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LTC3859AEUHF#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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