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LM5176RHFT - Texas Instruments

Description: 55V wide VIN synchronous 4-switch buck-boost controller

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LM5176RHFT - Texas Instruments - PCB symbol
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PCB Footprints
LM5176RHFT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RHF1
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3D Models
LM5176RHFT - Texas Instruments - 3D model - Quad Flat No-Lead - RHF1
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LM5176RHFT Details

  • Manufacturer Part Number:

    LM5176RHFT

  • 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:

    55 V

  • Input Voltage-Min:

    4.2 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PQCC-N28

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    55 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.16X.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

  • Supply Current-Max (Isup):

    4 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    600 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • 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:

    4 mm

LM5176RHFT Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the switching node (SW) away from sensitive analog nodes, and use a Kelvin connection for the output voltage sense lines.
  • Use the TI WEBENCH Power Designer tool to generate a compensation network based on the specific application requirements. The tool provides a recommended compensation network based on the output capacitor, inductor, and switching frequency.
  • The maximum allowed input voltage for the LM5176RHFT is 60V, but it's recommended to derate the input voltage to 55V to ensure reliable operation and minimize the risk of damage.
  • Use a thermal design that ensures the junction temperature (TJ) remains below 125°C. This can be achieved by using a heat sink, thermal interface material, and optimizing the PCB layout for good thermal conduction.
  • A low-ESR ceramic capacitor (X5R or X7R) with a value of 10uF to 22uF is recommended for the input capacitor. The capacitor should be placed close to the VIN pin and have a low inductance path to the input voltage source.

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LM5176RHFT 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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