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LTC3128EUFD#PBF - Analog Devices

Description: IC REG BCK BST ADJ 3A 20QFN

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PCB Footprints
LTC3128EUFD#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 20-PIN (4mm × 5mm) PLASTIC QFN
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LTC3128EUFD#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - 20-PIN (4mm × 5mm) PLASTIC QFN
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LTC3128EUFD#PBF Details

  • Manufacturer Part Number:

    LTC3128EUFD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4 X 5 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-220WXXX-X, QFN-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1711

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    OUTPUT VOLTAGE RANGE FROM 1.8 V TO 5.5 V

  • Analog IC - Other Type:

    SWITCHED CAPACITOR CONVERTER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    1.73 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    R-PQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Output Current-Max:

    9 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    1.8 V

  • Output Voltage-Nom:

    4.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    1400 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LTC3128EUFD#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the VIN pin is 15V, but it's recommended to keep it below 12V 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 of less than 100mΩ, and a saturation current of at least 2A.
  • For optimal performance, it's recommended to follow a 4-layer PCB stack-up with a solid ground plane on the bottom layer, and to keep the high-current paths (VIN, VOUT, and GND) as short and wide as possible. Also, place the input and output capacitors close to the IC and use a thermal relief pattern for the GND pin.
  • The output voltage of the LTC3128EUFD can be adjusted by using a resistive divider network between the VOUT pin and the GND pin. The output voltage is determined by the ratio of the resistors and can be calculated using the formula: VOUT = 0.8V x (R1 + R2) / R2.
  • The maximum output current that the LTC3128EUFD can deliver is 2A, but it's recommended to keep the output current below 1.5A for optimal performance and to prevent overheating.

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LTC3128EUFD#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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