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LTC3769IFE#TRPBF - Analog Devices

Description: 60V Low IQ Synchronous Boost Controller with PassThru

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LTC3769IFE#TRPBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - LTC TSSOP_JS_
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LTC3769IFE#TRPBF Details

  • Manufacturer Part Number:

    LTC3769IFE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4.40 MM, LEAD FREE, PLASTIC, TSSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1663 (CA)

  • 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:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

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

  • Packing Method:

    TR

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    900 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    4.4 mm

LTC3769IFE#TRPBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the VIN pin is 40V, but it's recommended to keep it below 36V for reliable operation.
  • To minimize EMI, it's recommended to follow a star-ground configuration, keep the switching node (SW pin) away from sensitive analog nodes, and use a solid ground plane. Additionally, use a shielded inductor and keep the feedback traces short and away from the switching node.
  • The recommended output capacitor type is a low-ESR ceramic capacitor, such as an X5R or X7R dielectric. The value depends on the output voltage and current, but a good starting point is 10uF to 22uF.
  • The switching frequency of the LTC3769IFE can be set by connecting a resistor (RT) from the RT pin to GND. The switching frequency (FS) is calculated as FS = 1/(RT * 2.5e-9). For example, a 10kΩ resistor sets the switching frequency to approximately 400kHz.
  • The SS pin is the soft-start pin, which allows the output voltage to ramp up slowly during startup. This helps to reduce inrush current and prevent output voltage overshoot. To use the SS pin, connect a capacitor (CSS) from the SS pin to GND, and the soft-start time (tSS) is calculated as tSS = CSS * 10e-6. For example, a 10nF capacitor sets the soft-start time to approximately 100μs.

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LTC3769IFE#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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