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LTC3872ETS8-1#TRPBF - Analog Devices

Description: No RSENSE Current Mode Boost DC/DC Controller

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LTC3872ETS8-1#TRPBF - Analog Devices PCB footprint - SOT23 (8-Pin) - SOT23 (8-Pin) - TS8 Package 8-Lead Plastic TSOT-23
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LTC3872ETS8-1#TRPBF - Analog Devices  - 3D model - SOT23 (8-Pin) - TS8 Package 8-Lead Plastic TSOT-23
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LTC3872ETS8-1#TRPBF Details

  • Manufacturer Part Number:

    LTC3872ETS8-1#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LEAD FREE, PLASTIC, TSOT-23, 8 PIN

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1637

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    CONSTANT FREQUENCY

  • Input Voltage-Max:

    9.8 V

  • Input Voltage-Min:

    2.75 V

  • Input Voltage-Nom:

    4.2 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    0.4 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    550 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    1.625 mm

LTC3872ETS8-1#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3872 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 board with a dedicated power plane and a solid ground plane is recommended.
  • When selecting an inductor for the LTC3872, 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 100mΩ, and a core material with low core loss (e.g., ferrite or powdered iron).
  • The maximum ambient temperature for the LTC3872 is 85°C, but the device can operate up to 125°C with derating. It's essential to consider the thermal design and heat sinking to ensure the device operates within its specified temperature range.
  • Yes, the LTC3872 is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive applications and is manufactured with a high-reliability process. However, it's essential to review the device's qualification data and perform additional testing as required by the specific application.
  • To troubleshoot issues with the LTC3872, start by reviewing the PCB layout and ensuring it meets the recommended layout guidelines. Check the input and output voltage waveforms using an oscilloscope to identify any signs of oscillation or instability. Verify that the component values and types meet the recommended specifications, and check for any signs of overheating or damage to the device or surrounding components.

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LTC3872ETS8-1#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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