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LT3470AHDDB#TRMPBF - Analog Devices

Description: Micropower Buck Regulator with Integrated Boost and Catch Diodes

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LT3470AHDDB#TRMPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3470AHDDB#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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3D Models
LT3470AHDDB#TRMPBF - Analog Devices - 3D model - Small Outline No-lead - DDB Package 8-Lead Plastic DFN (3mm × 2mm)
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LT3470AHDDB#TRMPBF Details

  • Manufacturer Part Number:

    LT3470AHDDB#TRMPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    MO-229WECD-1, 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:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.56 A

  • Output Voltage-Max:

    16 V

  • Output Voltage-Min:

    1.25 V

  • Output Voltage-Nom:

    15 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC8,.08,20

  • Package Shape:

    RECTANGULAR

  • 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

  • Switching Frequency-Max:

    4000 kHz

  • Technology:

    BIPOLAR

  • 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

LT3470AHDDB#TRMPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good airflow around the device. The datasheet provides some guidelines, but a more detailed application note (AN137) from Analog Devices provides additional guidance.
  • To ensure stability, follow the recommended component values and PCB layout guidelines in the datasheet. Additionally, make sure to decouple the input and output with suitable capacitors, and use a low-ESR output capacitor to minimize ringing.
  • The maximum input voltage rating for the LT3470AHDDB is 42V, but it's recommended to operate the device within the specified input voltage range (3.5V to 36V) for optimal performance and reliability.
  • The LT3470AHDDB is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It's essential to follow the recommended operating conditions and consider thermal management strategies to ensure reliable operation.
  • Start by verifying the input voltage, output voltage, and current draw. Check the PCB layout and component values against the datasheet recommendations. Use an oscilloscope to inspect the output voltage waveform and look for signs of oscillation or ringing. Consult the datasheet and application notes for troubleshooting guidance.

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LT3470AHDDB#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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