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LMR51420YFDDCR - Texas Instruments

Description: Switching Voltage Regulators SIMPLE SWITCHER power converter 4.5-V to 36-V, 2-A, synchronous buck with 40-uA IQ

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PCB Footprints
LMR51420YFDDCR - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - 6-Pin Thin SOT23
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3D Models
LMR51420YFDDCR - Texas Instruments  - 3D model - SOT23 (6-Pin) - 6-Pin Thin SOT23
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LMR51420YFDDCR Details

  • Manufacturer Part Number:

    LMR51420YFDDCR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Philippines

  • 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:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e3

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2 A

  • Output Voltage-Max:

    34.2 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1100 kHz

  • Technology:

    BICMOS

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

  • Width:

    1.6 mm

LMR51420YFDDCR 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 device to optimize thermal performance.
  • To ensure stability, use a minimum output capacitance of 10uF, and consider adding a 10nF-100nF ceramic capacitor in parallel with the output capacitor to filter high-frequency noise.
  • The maximum ambient temperature for reliable operation is 85°C, but it's recommended to derate the device's power dissipation above 70°C to ensure long-term reliability.
  • While the LMR51420YFDDCR is rated for up to 42V input, it's not recommended for high-voltage applications above 24V due to potential reliability concerns. Consider using a voltage regulator with overvoltage protection for high-voltage applications.
  • To minimize EMI, use a shielded inductor, keep the PCB layout compact, and consider adding a common-mode choke or EMI filter to the output.

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LMR51420YFDDCR 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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