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LM3743MM-300/NOPB - Texas Instruments

Description: High-Performance Synchronous Buck Controller with Comprehensive Fault Protection Features

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LM3743MM-300/NOPB - Texas Instruments - PCB symbol
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LM3743MM-300/NOPB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DGS0010A
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LM3743MM-300/NOPB - Texas Instruments - 3D model - Small Outline Packages - DGS0010A
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LM3743MM-300/NOPB Details

  • Manufacturer Part Number:

    LM3743MM-300/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    OUTPUT VOLTAGE ADJUSTABLE DOWN TO 0.8V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-PDSO-G10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    10 A

  • Output Voltage-Max:

    4.6 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.1 mm

  • Supply Current-Max (Isup):

    3 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

LM3743MM-300/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and a thermal relief pattern under the IC to improve thermal performance. A minimum of 2 oz copper thickness is recommended for the top and bottom layers.
  • To ensure reliable start-up, Texas Instruments recommends using a soft-start circuit to limit the inrush current during power-up. Additionally, a minimum input capacitance of 10uF is recommended to ensure stable operation.
  • The LM3743MM-300/NOPB is rated for operation from -40°C to 125°C ambient temperature range. However, the device's performance and reliability may degrade at extreme temperatures, so it's essential to consider thermal management and derating factors in your design.
  • Yes, the LM3743MM-300/NOPB is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard for automotive grade devices and is suitable for use in harsh environments.
  • To troubleshoot common issues, Texas Instruments recommends checking the PCB layout for noise and signal integrity issues, ensuring proper input and output filtering, and verifying that the device is operated within its recommended operating conditions. Additionally, using a scope or simulation tools can help identify and debug issues.

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LM3743MM-300/NOPB Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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