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LT8705AHFE#PBF - Analog Devices

Description: 80V VIN and VOUT Synchronous 4-Switch Buck-Boost DC/DC Controller

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PCB Footprints
LT8705AHFE#PBF - Analog Devices PCB footprint - Other - Other - FE Package Package Variation: FE38 (31) 38-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG #
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LT8705AHFE#PBF Details

  • Manufacturer Part Number:

    LT8705AHFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-38/31

  • Pin Count:

    38

  • Manufacturer Package Code:

    05-08-1865

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    80 V

  • Input Voltage-Min:

    2.8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G31

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    31

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    80 V

  • Output Voltage-Min:

    1.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP31/38,.25,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    400 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Width:

    4.4 mm

LT8705AHFE#PBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the high-current paths.
  • Ensure that the output voltage is within the recommended range, and the input voltage is above the minimum specified voltage. Also, use the recommended output capacitor values and ensure that the feedback resistors are within the recommended range.
  • The maximum ambient temperature for the LT8705AHFE is 85°C, but it can be derated to 70°C for high-reliability applications.
  • Yes, the LT8705AHFE is designed to withstand high-vibration environments. However, ensure that the PCB is properly secured and the components are properly soldered to prevent mechanical stress.
  • Check the input voltage, output voltage, and current sense resistor values. Ensure that the feedback resistors are within the recommended range, and the output capacitors are of the correct value and type. Also, check for any signs of overheating or physical damage.

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LT8705AHFE#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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