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LM5148RGYR - Texas Instruments

Description: Switching Controllers 3.5-V to 80-V, current mode synchronous buck controller

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LM5148RGYR - Texas Instruments - PCB symbol
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PCB Footprints
LM5148RGYR - Texas Instruments PCB footprint - Other - Other - LM5148RGYR-2
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LM5148RGYR - Texas Instruments - 3D model - Other - LM5148RGYR-2
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LM5148RGYR Details

  • Manufacturer Part Number:

    LM5148RGYR

  • 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

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    80 V

  • Input Voltage-Min:

    3.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PQCC-N24

  • JESD-609 Code:

    e4

  • Length:

    5.5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    20 A

  • Output Voltage-Max:

    55 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC24,.14X.2,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2200 kHz

  • Technology:

    BICMOS

  • Terminal Finish:

    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:

    3.5 mm

LM5148RGYR Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM5148RGYR involves separating the input and output stages, using a solid ground plane, and minimizing loop areas. TI provides a recommended layout in the datasheet and application notes.
  • Optimizing the compensation network involves selecting the right values for the compensation components (Rc, Cc, and Lc) based on the output voltage, output current, and switching frequency. TI provides a compensation calculator tool to help with this process.
  • The maximum junction temperature for the LM5148RGYR is 150°C. It's essential to ensure that the device operates within the recommended temperature range to prevent thermal shutdown and ensure reliability.
  • Yes, the LM5148RGYR can be used in a synchronous rectification configuration to improve efficiency. However, this requires careful design and layout considerations to ensure proper operation and minimize losses.
  • Troubleshooting issues with the LM5148RGYR involves identifying the root cause of the problem, which can be related to PCB layout, component selection, or compensation network design. TI provides application notes and technical support resources to help with troubleshooting.

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LM5148RGYR 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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