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TPS54821RHLT - Texas Instruments

Description: 4.5V to 17V Input, 8-A Synchronous Step-Down Converter with Hiccup Current Limit

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TPS54821RHLT - Texas Instruments - PCB symbol
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PCB Footprints
TPS54821RHLT - Texas Instruments PCB footprint - Other - Other - RHL (S-PVQFN-N14)
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TPS54821RHLT - Texas Instruments - 3D model - Other - RHL (S-PVQFN-N14)
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TPS54821RHLT Details

  • Manufacturer Part Number:

    TPS54821RHLT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Pin Count:

    14

  • 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 WIDTH MODULATION

  • Input Voltage-Max:

    17 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N14

  • JESD-609 Code:

    e4

  • Length:

    3.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    8 A

  • Output Voltage-Max:

    15 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC14/18,.14SQ,20

  • Package Shape:

    SQUARE

  • 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:

    1600 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:

    3.5 mm

TPS54821RHLT Frequently Asked Questions (FAQs)

  • A good PCB layout for the TPS54821RHLT involves placing the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. TI provides a recommended PCB layout in the datasheet and application notes.
  • Choose input and output capacitors with low ESR, high ripple current rating, and a voltage rating that exceeds the maximum input voltage. X5R or X7R ceramic capacitors are good options. The datasheet provides guidance on capacitor selection.
  • The TPS54821RHLT is rated for operation from -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • Yes, the TPS54821RHLT is AEC-Q100 qualified and suitable for automotive and high-reliability applications. However, ensure that the device is used within its specified operating conditions and that the system design meets the required safety and reliability standards.
  • Use an oscilloscope to monitor the input and output voltages, and check for signs of oscillation or ringing. Verify that the input voltage is within the specified range, and that the device is properly cooled. Consult the datasheet and application notes for troubleshooting guidance.

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TPS54821RHLT 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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TPS54821RHLT Alternates

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Part Image TPS54821RHLR Texas Instruments

Switching Regulator, Current-mode, 8A, 1600kHz Switching Freq-Max, PQCC14