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LTC3890HGN-1#PBF - Analog Devices

Description: 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

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LTC3890HGN-1#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - GN Package 28-Lead Plastic SSOP (Narrow .150 Inch)
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LTC3890HGN-1#PBF - Analog Devices  - 3D model - Small Outline Packages - GN Package 28-Lead Plastic SSOP (Narrow .150 Inch)
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LTC3890HGN-1#PBF Details

  • Manufacturer Part Number:

    LTC3890HGN-1#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1641 (GN28)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 24V, ALSO OPERATES AS LDO REGULATOR

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.893 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    28

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    835 kHz

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.899 mm

LTC3890HGN-1#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the VIN pin is 28V, but it's recommended to keep it below 24V for optimal performance and reliability.
  • To minimize EMI, it's recommended to keep the switching node (SW pin) away from sensitive analog nodes, use a solid ground plane, and keep the high-current paths short and wide. Additionally, use a common-mode choke or ferrite bead on the input lines to reduce common-mode noise.
  • The recommended output capacitor value is 10uF to 22uF, and it's recommended to use a low-ESR ceramic capacitor (e.g., X5R or X7R) to minimize output voltage ripple and ensure stability.
  • The switching frequency of the LTC3890HGN-1#PBF can be adjusted by connecting a resistor (RT) between the RT pin and the GND pin. The switching frequency (FS) is inversely proportional to RT, according to the formula: FS = 1.25 / RT.
  • The maximum output current that the LTC3890HGN-1#PBF can deliver is 3.5A, but it's recommended to derate the output current based on the ambient temperature and the desired reliability.

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LTC3890HGN-1#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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Part Image LTC3890HGN-1#PBF Linear Technology

Switching Controller, Current-mode, 835kHz Switching Freq-Max, CMOS, PDSO28