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LTC3873IDDB-5#TRMPBF - Analog Devices

Description: No RSENSE™ Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller

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LTC3873IDDB-5#TRMPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3873IDDB-5#TRMPBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DDB Package 8-Lead Plastic DFN (3mm × 2mm)
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LTC3873IDDB-5#TRMPBF - Analog Devices - 3D model - Small Outline No-lead - DDB Package 8-Lead Plastic DFN (3mm × 2mm)
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LTC3873IDDB-5#TRMPBF Details

  • Manufacturer Part Number:

    LTC3873IDDB-5#TRMPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WECD-1, DFN-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1702

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    9 V

  • Input Voltage-Min:

    3.5 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDSO-N8

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    1.218 V

  • Output Voltage-Min:

    1.182 V

  • Output Voltage-Nom:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SON

  • Package Equivalence Code:

    SOLCC8,.08,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.4 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    240 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:

    2 mm

LTC3873IDDB-5#TRMPBF Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the LTC3873's performance. Analog Devices recommends a 4-layer board with a solid ground plane, and to keep the high-frequency switching components (e.g., inductors, capacitors) close to the IC. A good layout will help minimize EMI, reduce noise, and improve thermal performance.
  • Choosing the right inductor is critical for the LTC3873's performance. Consider factors such as inductance value, saturation current, and core material. A good starting point is to use the inductor selection guide in the datasheet, and then verify the selection through simulation and experimentation.
  • While the datasheet specifies an operating temperature range of -40°C to 125°C, the maximum ambient temperature for reliable operation depends on the specific application and cooling conditions. As a general rule, it's recommended to keep the junction temperature below 100°C to ensure reliable operation and minimize thermal stress.
  • When troubleshooting issues like oscillations or instability, start by checking the PCB layout, component selection, and soldering quality. Verify that the input and output capacitors are properly selected and placed. Use an oscilloscope to measure the voltage and current waveforms, and check for signs of ringing or oscillation. Consult the datasheet and application notes for guidance on troubleshooting and debugging.
  • Yes, the LTC3873 is suitable for high-reliability and safety-critical applications. However, it's essential to follow proper design and testing procedures to ensure the device meets the required safety and reliability standards. Consult the datasheet, application notes, and relevant industry standards (e.g., IEC 61508, ISO 26262) for guidance.

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LTC3873IDDB-5#TRMPBF 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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