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LMR51420YDDCR - 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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LMR51420YDDCR - Texas Instruments - PCB symbol
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PCB Footprints
LMR51420YDDCR - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DDC0006A
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3D Models
LMR51420YDDCR - Texas Instruments - 3D model - SOT23 (6-Pin) - DDC0006A
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LMR51420YDDCR Details

  • Manufacturer Part Number:

    LMR51420YDDCR

  • 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 FREQUENCY 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

LMR51420YDDCR Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias under the device can help to dissipate heat efficiently. It's also recommended to keep the thermal path short and use a thermal pad on the bottom of the device.
  • To ensure stability, it's essential to follow the recommended component values and PCB layout guidelines. Additionally, a low-ESR output capacitor and a high-quality input capacitor can help to prevent oscillations.
  • Although the datasheet specifies a maximum input voltage of 42V, it's recommended to derate the input voltage to 36V to ensure reliable operation and prevent damage to the device.
  • While the device is rated for operation up to 125°C, it's essential to consider the thermal derating and ensure that the device does not exceed the maximum junction temperature (TJ) of 150°C. Proper thermal management and heat sinking are crucial in high-temperature environments.
  • To troubleshoot output voltage regulation issues, check the input voltage, output voltage, and feedback voltage using an oscilloscope. Verify that the feedback resistors are correctly connected and that the output capacitor is of sufficient value and quality.

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LMR51420YDDCR Overview

Use the download button to access the LMR51420YDDCR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LMR51, or try a keyword search, such as Switching Regulator or Controllers

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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