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TPS40040DRBT - Texas Instruments

Description: 2.25 to 5.5 V input, 300 kHz, synchronous buck controller with low pin count

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PCB Footprints
TPS40040DRBT - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DRB0008B
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TPS40040DRBT - Texas Instruments  - 3D model - Small Outline No-lead - DRB0008B
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TPS40040DRBT Details

  • Manufacturer Part Number:

    TPS40040DRBT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SON

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China, Malaysia, Philippines, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 4.95V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.25 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    S-PDSO-N8

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    15 A

  • Output Voltage-Max:

    4.95 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

TPS40040DRBT Frequently Asked Questions (FAQs)

  • TI recommends a 2-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to minimize thermal resistance. A minimum of 2 oz copper thickness is recommended for the top layer.
  • Ensure proper thermal design, use a heat sink if necessary, and follow the recommended operating conditions. Also, consider using a thermistor or thermal sensor to monitor the device temperature and implement thermal protection if needed.
  • The maximum allowed voltage on the input pins (VIN, EN, and TR) is 6V, which is higher than the recommended operating voltage of 5.5V. However, it's essential to ensure that the input voltage does not exceed 6V to prevent damage to the device.
  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency. TI provides a calculation tool and application notes to help with this calculation.
  • TI recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF for the input capacitor (CIN). The capacitor should be placed as close as possible to the VIN pin to minimize noise and ensure stable operation.

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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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