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LMR51430XDDCR - Texas Instruments

Description: Switching Voltage Regulators SIMPLE SWITCHER® 4.5-V to 36-V, 3-A synchronous buck converter with 40-µA IQ

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LMR51430XDDCR - Texas Instruments - PCB symbol
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PCB Footprints
LMR51430XDDCR - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - SOT-23-THIN
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3D Models
LMR51430XDDCR - Texas Instruments - 3D model - SOT23 (6-Pin) - SOT-23-THIN
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LMR51430XDDCR Details

  • Manufacturer Part Number:

    LMR51430XDDCR

  • 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:

    3 A

  • Output Voltage-Max:

    34.2 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VSSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • 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

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

    30

  • Width:

    1.6 mm

LMR51430XDDCR 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 minimum ESR of 10mΩ for the output capacitor and a minimum output capacitance of 10uF are recommended. You can also add a 10nF capacitor in parallel with the output capacitor to improve stability.
  • Although the datasheet specifies a maximum input voltage of 42V, it's recommended to limit the input voltage to 40V to ensure reliable operation and prevent damage to the device.
  • The output voltage ripple and noise can be calculated using the following formula: ΔVout = (Iout * Rl) / (fsw * Cout), where Iout is the output current, Rl is the load resistance, fsw is the switching frequency, and Cout is the output capacitance.
  • A 10uF to 22uF X5R or X7R ceramic capacitor is recommended for the input capacitor. The capacitor should be placed as close as possible to the device's input pins to minimize noise and ensure stable operation.

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LMR51430XDDCR 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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