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TPS51221RTVT - Texas Instruments

Description: DC DC Cntrlr Dual-OUT Synchronous Buck Controller/PWM DC to DC Controller 4.5V to 28V Input 32-Pin WQFN EP T/R

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Symbol
TPS51221RTVT - Texas Instruments - PCB symbol
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PCB Footprints
TPS51221RTVT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RTV0032E
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3D Models
TPS51221RTVT - Texas Instruments - 3D model - Quad Flat No-Lead - RTV0032E
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TPS51221RTVT Details

  • Manufacturer Part Number:

    TPS51221RTVT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Pin Count:

    32

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PQCC-N32

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    2

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    20 A

  • Output Voltage-Max:

    12 V

  • Output Voltage-Min:

    1 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

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    5 mm

TPS51221RTVT Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
  • Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current rating to minimize voltage drops and ensure stable operation. Output capacitors should have low ESR and high capacitance to filter out noise and provide stable output voltage. Consult the datasheet and capacitor manufacturers' recommendations for specific values and types.
  • The TPS51221RTVT has an absolute maximum input voltage rating of 18V, but it's recommended to operate within the specified input voltage range of 4.5V to 15V for optimal performance and reliability.
  • The soft-start feature is enabled by connecting a capacitor between the SS pin and GND. The soft-start time is determined by the capacitor value and the internal resistor. A larger capacitor value increases the soft-start time, while a smaller value decreases it. Consult the datasheet for specific capacitor values and soft-start times.
  • The Power Good (PG) pin is an open-drain output that indicates when the output voltage is within the specified regulation range. It can be used to monitor the output voltage and provide a signal to other components or microcontrollers when the output is stable and within spec.

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TPS51221RTVT 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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