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TPS51225RUKT - Texas Instruments

Description: Dual Synchronous Step-Down Controller with 5-V and 3.3-V LDOs

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PCB Footprints
TPS51225RUKT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RUK (S-PWQFN-N20)
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3D Models
TPS51225RUKT - Texas Instruments  - 3D model - Quad Flat No-Lead - RUK (S-PWQFN-N20)
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TPS51225RUKT Details

  • Manufacturer Part Number:

    TPS51225RUKT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Pin Count:

    20

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    24 V

  • Input Voltage-Min:

    5.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N20

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    10 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    4.5 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    355 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    3 mm

TPS51225RUKT Frequently Asked Questions (FAQs)

  • A good PCB layout for the TPS51225RUKT involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. TI provides a recommended layout in the datasheet and application notes.
  • Choose input capacitors with low ESR and high ripple current rating. For output capacitors, select ones with low ESR and high capacitance. TI recommends using ceramic or polymer capacitors with X5R or X7R dielectrics. Refer to the datasheet for specific recommendations.
  • The TPS51225RUKT is rated for operation from -40°C to 125°C. However, the maximum ambient temperature range depends on the specific application and cooling conditions. Consult the datasheet and thermal design guidelines for more information.
  • The output voltage of the TPS51225RUKT can be adjusted by changing the resistor divider ratio between the FB pin and the output voltage. Use the formula provided in the datasheet to calculate the required resistor values.
  • The minimum input voltage required for the TPS51225RUKT to operate is 2.7V. However, the recommended input voltage range is 3.5V to 18V for optimal performance.

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TPS51225RUKT 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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