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LT3470EDDB#TRPBF - Analog Devices

Description: Micropower Buck Regulator with Integrated Boost and Catch Diodes 26µA at 12VIN to 3.3VOUT,4V to 40V,1.25V to 16V,–40°C to 85°C

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LT3470EDDB#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3470EDDB#TRPBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DDB Package 8-Lead Plastic DFN (3mm × 2mm)
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3D Models
LT3470EDDB#TRPBF - Analog Devices - 3D model - Small Outline No-lead - DDB Package 8-Lead Plastic DFN (3mm × 2mm)
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LT3470EDDB#TRPBF Details

  • Manufacturer Part Number:

    LT3470EDDB#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DFN-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1702

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    HYSTERETIC CURRENT MODE

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    10 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:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.2 A

  • Output Voltage-Max:

    16 V

  • Output Voltage-Min:

    1.25 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC8,.08,20

  • Package Shape:

    RECTANGLE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • 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

LT3470EDDB#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the device on a solid copper plane, using thermal vias to connect the plane to the device's thermal pad, and keeping the plane as close to the device as possible. Additionally, using a 4-layer board with a dedicated thermal layer can help to dissipate heat more efficiently.
  • To ensure reliable start-up of the LT3470EDDB, make sure to follow the recommended start-up sequence, which involves applying the input voltage before the enable pin. Also, ensure that the input voltage is within the recommended range and that the output capacitors are properly sized to handle the inrush current.
  • The maximum ambient temperature for reliable operation of the LT3470EDDB is 85°C. However, the device can operate up to 125°C with derating. It's essential to consider the thermal design and ensure that the device's junction temperature does not exceed the recommended maximum temperature.
  • Yes, the LT3470EDDB is suitable for high-reliability applications. It's manufactured using a high-reliability process, and Analog Devices provides a range of reliability data, including FIT rates and MTBF calculations, to support its use in critical applications.
  • To troubleshoot oscillations or instability issues with the LT3470EDDB, start by checking the PCB layout and ensuring that the device is properly decoupled. Verify that the input and output capacitors are properly sized and that the feedback loop is properly compensated. Also, check for any noise or interference on the input or output lines that could be causing the issue.

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LT3470EDDB#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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