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LMR14203XMK/NOPB - Texas Instruments

Description: SIMPLE SWITCHER 4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23

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LMR14203XMK/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LMR14203XMK/NOPB - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DDC
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3D Models
LMR14203XMK/NOPB - Texas Instruments - 3D model - SOT23 (6-Pin) - DDC
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LMR14203XMK/NOPB Details

  • Manufacturer Part Number:

    LMR14203XMK/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-23

  • Pin Count:

    6

  • 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:

    42 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e3

  • Length:

    2.97 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.3 A

  • Output Voltage-Max:

    34 V

  • Output Voltage-Min:

    0.765 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VSSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1500 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    1.65 mm

LMR14203XMK/NOPB Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the PCB. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Additionally, placing vias under the device can help to dissipate heat more efficiently.
  • To ensure stability and prevent oscillations in the output voltage, it is recommended to use a minimum output capacitance of 10uF, and to place the output capacitor close to the output pin. Additionally, using a low-ESR capacitor and minimizing the distance between the output capacitor and the output pin can help to reduce oscillations.
  • The recommended input capacitor value is 10uF to 22uF, and a low-ESR ceramic capacitor (X5R or X7R dielectric) is recommended. The input capacitor should be placed close to the input pin to minimize noise and ensure optimal performance.
  • To protect the device from overvoltage and undervoltage conditions, it is recommended to use a voltage supervisor or a reset IC to monitor the input voltage and reset the device if it falls outside the recommended operating range. Additionally, using a TVS diode or a zener diode can help to protect the device from voltage spikes and transients.
  • The recommended operating temperature range for the LMR14203XMK/NOPB is -40°C to 125°C. However, the device can operate up to 150°C with reduced performance and reliability.

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LMR14203XMK/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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