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LTC3858EUH-2#PBF - Analog Devices

Description: Buck Regulator Positive Output Step-Down DC-DC Controller IC 32-QFN (5x5) , 4V ~ 38V , -40°C ~ 125°C (TJ)

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LTC3858EUH-2#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3858EUH-2#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm)
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3D Models
LTC3858EUH-2#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm)
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LTC3858EUH-2#PBF Details

  • Manufacturer Part Number:

    LTC3858EUH-2#PBF

  • 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 0.8 TO 24 V

  • 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 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

  • 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:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

LTC3858EUH-2#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3858EUH-2#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 separate power plane for the input voltage and to keep the switching node (SW) away from sensitive analog nodes.
  • The choice of input and output capacitors for the LTC3858EUH-2#PBF depends on the specific application requirements. In general, low-ESR capacitors with a high ripple current rating are recommended. For the input capacitor, a 10uF to 22uF ceramic capacitor is a good starting point, while for the output capacitor, a 22uF to 47uF ceramic capacitor is suitable. The capacitor values can be adjusted based on the output voltage and current requirements.
  • The LTC3858EUH-2#PBF has an operating ambient temperature range of -40°C to 125°C. However, the maximum junction temperature (TJ) should not exceed 150°C. It's essential to ensure proper thermal management to prevent overheating and ensure reliable operation.
  • Yes, the LTC3858EUH-2#PBF is suitable for high-reliability and automotive applications. It's built with high-quality materials and has undergone rigorous testing to ensure its reliability and robustness. However, it's essential to follow the recommended design and layout guidelines, as well as to perform thorough testing and validation to ensure the device meets the specific application requirements.
  • To troubleshoot issues with the LTC3858EUH-2#PBF, start by checking the PCB layout and ensuring that it follows the recommended guidelines. Verify that the input and output capacitors are properly selected and placed. Check the voltage and current waveforms using an oscilloscope to identify any anomalies. Also, ensure that the device is properly decoupled and that the power supply is clean and stable. If the issue persists, consult the datasheet and application notes or contact Analog Devices' technical support for further assistance.

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LTC3858EUH-2#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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