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LM5574QMT/NOPB - Texas Instruments

Description: SIMPLE SWITCHER® 75V, 0.5A Step-Down Switching Regulator

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LM5574QMT/NOPB - Texas Instruments - PCB symbol
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LM5574QMT/NOPB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0016A 2021
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LM5574QMT/NOPB - Texas Instruments - 3D model - Small Outline Packages - PW0016A 2021
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LM5574QMT/NOPB Details

  • Manufacturer Part Number:

    LM5574QMT/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    75 V

  • Input Voltage-Min:

    6 V

  • Input Voltage-Nom:

    48 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.5 A

  • Output Voltage-Max:

    70 V

  • Output Voltage-Min:

    1.23 V

  • Output Voltage-Nom:

    7.15 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LM5574QMT/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 maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device. It is recommended to use a voltage divider or a clamp circuit to limit the voltage on the EN pin.
  • The LM5574QMT/NOPB is rated for operation up to 150°C. However, the device's performance and reliability may degrade at high temperatures. It is recommended to derate the output current and voltage according to the temperature derating curve provided in the datasheet.
  • To troubleshoot oscillations or instability, Texas Instruments recommends checking the PCB layout for noise coupling, ensuring proper decoupling of the input and output capacitors, and verifying that the output filter components are properly selected. Additionally, checking the input voltage and current ripple can help identify the root cause of the issue.

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LM5574QMT/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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