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LTC3129IUD#PBF - Analog Devices

Description: 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3μA Quiescent Current

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LTC3129IUD#PBF - Analog Devices - PCB symbol
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LTC3129IUD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UD Package 16-Lead Plastic QFN (3mm s 3mm)
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LTC3129IUD#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UD Package 16-Lead Plastic QFN (3mm s 3mm)
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LTC3129IUD#PBF Details

  • Manufacturer Part Number:

    LTC3129IUD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1700

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ADJUSTABLE OUTPUT MODE FROM 1.4 TO 15.75 VOLT; CURRENT MODE ALSO AVAILABLE

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    15 V

  • Input Voltage-Min:

    1.92 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N16

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.68 A

  • Output Voltage-Nom:

    4.1 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

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1400 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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:

    3 mm

LTC3129IUD#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the VIN pin is 18V, but it's recommended to keep it below 15V for optimal performance and to prevent damage to the internal components.
  • To optimize the inductor selection, consider the following factors: inductance value, DC resistance, and saturation current. A good starting point is to choose an inductor with an inductance value between 1.5uH to 3.3uH, a DC resistance less than 100mΩ, and a saturation current greater than the peak current of the converter.
  • For optimal performance, it's recommended to follow a star-ground configuration, where the input and output capacitors are placed close to the IC, and the inductor is placed away from the IC. Also, keep the high-current paths short and wide, and avoid routing sensitive analog signals near the inductor or switching nodes.
  • To troubleshoot, first check the input voltage and ensure it's within the recommended range. Then, verify that the feedback resistors are correctly connected and that the output voltage is not overloaded. If the issue persists, check the inductor for saturation or overheating, and ensure that the PCB layout is correct.
  • The LTC3129 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to prevent overheating and ensure reliable operation.

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LTC3129IUD#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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