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LTC3311SIV#TRPBF - Analog Devices

Description: 5V, 12.5A Synchronous Step-Down Silent Switcher 2 in 3mm x 3mm LQFN

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LTC3311SIV#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3311SIV#TRPBF - Analog Devices PCB footprint - Other - Other - LGA Package 18-Lead (3mm × 3mm × 0.94mm) (Reference LTC DWG # 05-08-1548 Rev A)_2026
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3D Models
LTC3311SIV#TRPBF - Analog Devices - 3D model - Other - LGA Package 18-Lead (3mm × 3mm × 0.94mm) (Reference LTC DWG # 05-08-1548 Rev A)_2026
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LTC3311SIV#TRPBF Details

  • Manufacturer Part Number:

    LTC3311SIV#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LQFN-18

  • Pin Count:

    18

  • Manufacturer Package Code:

    05-08-1548

  • Country Of Origin:

    South Korea

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2020-09-30

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.25 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-PQCC-N18

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    12.5 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    0.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HQCCN

  • Package Equivalence Code:

    LCC18,.12SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.03 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    5000 kHz

  • Technology:

    CMOS

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

LTC3311SIV#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3311 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance. A 4-layer board with a dedicated power plane and a solid ground plane is recommended.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. Also, avoid using long traces or wires for the feedback network, and keep the feedback resistors close to the device.
  • The LTC3311 is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. It's essential to ensure that the device's junction temperature does not exceed 150°C.
  • Yes, the LTC3311 is available in a variety of grades, including the 'H' grade for high-reliability applications and the 'MP' grade for automotive applications. These grades have additional testing and screening to ensure the device meets the required standards for these applications.
  • The power dissipation of the LTC3311 can be calculated using the equation: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current. Make sure to consider the device's thermal resistance and the ambient temperature when calculating the power dissipation.

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LTC3311SIV#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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