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LMR51450FNDRRR - Texas Instruments

Description: Switching Voltage Regulators 36-V, 5-A synchronous buck converter

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LMR51450FNDRRR - Texas Instruments - PCB symbol
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PCB Footprints
LMR51450FNDRRR - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DRR0012G
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LMR51450FNDRRR - Texas Instruments - 3D model - Small Outline No-lead - DRR0012G
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LMR51450FNDRRR Details

  • Manufacturer Part Number:

    LMR51450FNDRRR

  • 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

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    S-PDSO-N12

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5 A

  • Output Voltage-Max:

    34 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC12,.12,20

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1100 kHz

  • Technology:

    BICMOS

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Width:

    3 mm

LMR51450FNDRRR Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and thermal vias to the bottom layer to dissipate heat efficiently. A minimum of 2 oz copper thickness is recommended for the top layer.
  • Ensure the input voltage is within the recommended range of 4.5V to 18V, and the output voltage is set within the specified range of 0.8V to 15V. Also, ensure the device is operated within the recommended junction temperature range of -40°C to 150°C.
  • A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the input capacitor. X5R or X7R dielectric types are suitable for this application.
  • Use a shielded inductor, keep the switching node (SW pin) away from sensitive nodes, and use a common-mode choke or ferrite bead on the input lines to minimize EMI. Also, ensure the PCB layout is optimized for minimal loop area and distance between the input and output capacitors.
  • A low-ESR ceramic capacitor with a value of 22uF to 47uF is recommended for the output capacitor. X5R or X7R dielectric types are suitable for this application. The output capacitor should be placed close to the output pin to minimize parasitic inductance.

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LMR51450FNDRRR 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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