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LM5143QRWGRQ1 - Texas Instruments

Description: Switching Controllers 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller 40-VQFNP -40 to 150

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LM5143QRWGRQ1 - Texas Instruments - PCB symbol
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LM5143QRWGRQ1 - Texas Instruments PCB footprint - Other - Other - LM5143QRWGRQ1-3
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LM5143QRWGRQ1 Details

  • Manufacturer Part Number:

    LM5143QRWGRQ1

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2018-11-11

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    65 V

  • Input Voltage-Min:

    3.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N40

  • JESD-609 Code:

    e4

  • Length:

    6 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    2

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    40 A

  • Output Voltage-Max:

    55 V

  • Output Voltage-Min:

    0.6 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    0.9 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2200 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    6 mm

LM5143QRWGRQ1 Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM5143QRWGRQ1 involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the high-current paths. TI provides a recommended layout in the datasheet and application notes.
  • To ensure the LM5143QRWGRQ1 operates within its SOA, monitor the input voltage, output current, and junction temperature. Use the thermal resistance (RθJA) and maximum junction temperature (TJ) ratings to calculate the maximum allowed power dissipation. Also, ensure the output current is within the recommended range.
  • A low-ESR ceramic capacitor (X5R or X7R) with a value of 10-22 μF is recommended for the input capacitor. This helps to filter out high-frequency noise and ensure stable operation.
  • Optimize the output filter design by selecting the right inductor value and type, and ensuring the output capacitor is a low-ESR ceramic capacitor. Use the datasheet's output filter design equations and TI's WEBENCH tool to help with the design process.
  • The maximum allowed voltage drop across the LM5143QRWGRQ1's internal FETs is approximately 1.5 V. Exceeding this voltage drop may lead to reduced efficiency and increased heat generation.

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LM5143QRWGRQ1 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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Part Image LM5143QRWGTQ1 Texas Instruments

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