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LTC3868IUH#TRPBF - Analog Devices

Description: Low IQ, Dual 2-Phase Synchronous Step-Down Controller

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LTC3868IUH#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3868IUH#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm) (Reference LTC DWG # 05-08-1693 Rev D)
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3D Models
LTC3868IUH#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm) (Reference LTC DWG # 05-08-1693 Rev D)
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LTC3868IUH#TRPBF Details

  • Manufacturer Part Number:

    LTC3868IUH#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    05-08-1693

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 14V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    24 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    14 V

  • Output Voltage-Min:

    0.8 V

  • Output Voltage-Nom:

    5.1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

LTC3868IUH#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3868IUH involves keeping the high current paths short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. A 4-layer board with a dedicated power plane is recommended. Refer to the datasheet's layout guidelines and application notes for more details.
  • To select the right inductor for the LTC3868IUH, consider the maximum output current, switching frequency, and desired ripple current. A good starting point is to use an inductor with a saturation current rating above the maximum output current, and a DC resistance (DCR) that is low enough to minimize power loss. Refer to the datasheet's inductor selection guide and application notes for more details.
  • The maximum junction temperature for the LTC3868IUH is 125°C. However, it's recommended to keep the junction temperature below 100°C for optimal performance and reliability. Use thermal design and heat sinking techniques to keep the junction temperature within the recommended range.
  • While the LTC3868IUH can operate up to 125°C, its performance and reliability may degrade at high temperatures. For high-temperature applications, consider using a heat sink, thermal interface material, and a thermally-enhanced package such as the LTC3868IUH-1. Consult with Analog Devices' application engineers for more guidance.
  • To troubleshoot issues with the LTC3868IUH, start by checking the input voltage, output voltage, and current. Verify that the input and output capacitors are properly sized and placed. Check for signs of overheating, such as excessive temperature or thermal shutdown. Use an oscilloscope to monitor the switching node and output voltage waveforms. Consult the datasheet's troubleshooting guide and application notes for more details.

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LTC3868IUH#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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