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LTC3122IDE#PBF - Analog Devices

Description: 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect

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LTC3122IDE#PBF - Analog Devices - PCB symbol
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LTC3122IDE#PBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DE/UE Package 12-Lead Plastic DFN (4mm × 3mm)
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LTC3122IDE#PBF - Analog Devices - 3D model - Small Outline No-lead - DE/UE Package 12-Lead Plastic DFN (4mm × 3mm)
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LTC3122IDE#PBF Details

  • Manufacturer Part Number:

    LTC3122IDE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WGED, DFN-12

  • Pin Count:

    12

  • Manufacturer Package Code:

    05-08-1695

  • 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 2.2 TO 15 VOLT

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    0.5 V

  • Input Voltage-Nom:

    3.6 V

  • JESD-30 Code:

    R-PDSO-N12

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    4.5 A

  • Output Voltage-Max:

    4.5 V

  • Output Voltage-Min:

    4 V

  • Output Voltage-Nom:

    4.25 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC12,.12,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    1150 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

LTC3122IDE#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, and a DC resistance of less than 100mΩ. Also, ensure the inductor can handle the peak current of the converter.
  • For optimal performance, it's recommended to follow a star-grounding layout, where the GND pins of the IC are connected to a central ground point. Keep the high-current paths (VIN, VOUT, and SW) short and wide, and avoid routing sensitive signals near the inductor or switch node. Also, use a solid ground plane to reduce noise and EMI.
  • The output voltage of the LTC3122 can be adjusted by changing the resistor divider ratio of the FB pin. The output voltage is determined by the equation: VOUT = 0.8V x (R1 + R2) / R2. Choose R1 and R2 to achieve the desired output voltage, ensuring that R1 is at least 1kΩ and R2 is at least 2kΩ.
  • The RUN pin is an active-high enable input that allows the user to turn the converter on and off. To use it, connect the RUN pin to a logic-level signal (e.g., from a microcontroller) to enable or disable the converter. When the RUN pin is high, the converter is enabled, and when it's low, the converter is disabled.

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LTC3122IDE#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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