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LMR33630BRNXT - Texas Instruments

Description: SIMPLE SWITCHER® 3.8V to 36V, 3A Synchronous Buck Converter With Ultra-Low EMI

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PCB Footprints
LMR33630BRNXT - Texas Instruments PCB footprint - Other - Other - RNX0012B
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LMR33630BRNXT - Texas Instruments  - 3D model - Other - RNX0012B
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LMR33630BRNXT Details

  • Manufacturer Part Number:

    LMR33630BRNXT

  • 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

  • Additional Feature:

    ALSO AVAILABLE IN PFM MODE;ADJUSTABLE OUTPUT VOLTAGE 1 TO 24V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    3.8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PQCC-N12

  • JESD-609 Code:

    e4

  • Length:

    2 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    34 V

  • Output Voltage-Min:

    1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HQCCN

  • Package Equivalence Code:

    LCC12,.08X.12,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2100 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn); Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    3 mm

LMR33630BRNXT 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 with a high-gain configuration, it's recommended to add a capacitor (e.g., 10nF to 100nF) in parallel with the feedback resistor to reduce the gain-bandwidth product and prevent oscillations.
  • The maximum safe operating area (SOA) for the LMR33630BRNXT is limited by the maximum junction temperature (TJ) of 150°C, and the maximum output current (IOUT) of 3.5A. Operating the device within these limits ensures reliable operation and prevents damage.
  • To minimize EMI, use a shielded inductor, keep the switching node (SW) away from sensitive nodes, and use a common-mode choke or ferrite bead on the input and output lines. Additionally, ensure good PCB layout practices, such as separating analog and digital grounds.
  • A low-ESR ceramic capacitor (e.g., X5R or X7R) with a value between 10uF to 22uF is recommended for optimal performance. This helps to filter the input voltage and reduce ripple.

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LMR33630BRNXT 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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