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LTC3870EUF-1#PBF - Analog Devices

Description: LTC3887-1 Phase Extender n Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs n Cascade with Multiple Chips for Very Large Current Applications n Accurate PolyPhase Current Sharing n EXTVCC Capable of 5V to 14V Input n Wide VIN Range: 4.5V to 60V n Wide Output Voltage Range : 0.5V to 14V n Wide SYNC Frequency Range: 100kHz to 1MHz n Pin Programmable CCM/DCM Operation n Pin Programmable Phase-Shift Control n Available in a 24-Pin (4mm × 4mm) QFN Package

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LTC3870EUF-1#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3870EUF-1#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1697 Rev B)
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3D Models
LTC3870EUF-1#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1697 Rev B)
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LTC3870EUF-1#PBF Details

  • Manufacturer Part Number:

    LTC3870EUF-1#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1697

  • 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 0.5V TO 14V

  • Analog IC - Other Type:

    DUAL 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:

    15 V

  • JESD-30 Code:

    S-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    14 V

  • Output Voltage-Min:

    0.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LTC3870EUF-1#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3870EUF-1#PBF involves keeping the high-frequency switching nodes (e.g., SW, VIN, and VOUT) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance. A 4-layer PCB with a dedicated power plane and a separate ground plane is recommended.
  • When selecting an inductor for the LTC3870EUF-1#PBF, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating of at least 1.5 times the maximum output current, a DC resistance of less than 10mΩ, and a core material with low core loss (e.g., ferrite or powdered iron).
  • The maximum ambient temperature rating for the LTC3870EUF-1#PBF is 125°C, but the device can operate up to 150°C with derating. It's essential to ensure proper thermal management and heat sinking to maintain a safe operating temperature.
  • Yes, the LTC3870EUF-1#PBF is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive-grade ICs and is manufactured using a robust process that ensures high reliability and low defect rates.
  • To troubleshoot issues with the LTC3870EUF-1#PBF, start by verifying the PCB layout, component selection, and soldering quality. Use an oscilloscope to check for oscillations, ringing, or other anomalies on the switching nodes. Consult the datasheet and application notes for guidance on debugging and troubleshooting techniques.

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LTC3870EUF-1#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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