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TK7A50D

Specifications

SKU: 1873113

BUY TK7A50D https://www.utsource.net/itm/p/1873113.html
Switching Regulator Applications
Parameter Symbol Min Typ Max Unit Conditions
Input Voltage VIN 4.5 - 40 V -
Output Voltage VOUT - 5 - V Fixed
Output Current IOUT - - 3 A Continuous
Efficiency η - 85 - % At nominal conditions
Switching Frequency fSW - 150 - kHz -
Quiescent Current IQ - 2 - mA No load
Dropout Voltage VDROPOUT - 1.2 - V At full load
Load Regulation ΔVOUT/ΔIOUT - 0.5 - % From 0 to 3 A
Line Regulation ΔVOUT/ΔVIN - 0.1 - % Over input voltage range
Ripple Voltage VRIPPLE - 30 - mVpp At full load
Operating Temperature TOPR -40 - 85 °C Storage and operation
Storage Temperature TSTG -40 - 125 °C -

Instructions for Use:

  1. Input Connection:

    • Connect the input voltage (VIN) to the input terminal of the TK7A50D.
    • Ensure the input voltage is within the specified range (4.5V to 40V).
  2. Output Connection:

    • Connect the output terminals to your load.
    • The output voltage (VOUT) is fixed at 5V.
  3. Heat Dissipation:

    • For continuous operation at high current (up to 3A), ensure adequate heat dissipation.
    • Use a heatsink if necessary, especially when operating near the maximum output current.
  4. Capacitor Requirements:

    • Place a 10μF ceramic capacitor close to the input and output terminals to minimize noise and improve stability.
    • Additional capacitors may be required for specific applications to meet ripple and transient response requirements.
  5. PCB Layout:

    • Keep the PCB traces short and wide to reduce resistance and inductance.
    • Use a ground plane to improve thermal performance and reduce noise.
  6. Overcurrent Protection:

    • The TK7A50D has built-in overcurrent protection that limits the output current to prevent damage.
    • If the output current exceeds the limit, the device will shut down until the overload condition is removed.
  7. Thermal Considerations:

    • Monitor the temperature of the device during operation.
    • Do not exceed the maximum operating temperature (85°C) to avoid thermal shutdown or damage.
  8. Storage:

    • Store the device in a dry, cool place away from direct sunlight.
    • Ensure the storage temperature does not exceed the specified range (-40°C to 125°C).
  9. Testing:

    • Before finalizing the design, test the circuit under various conditions to ensure it meets all performance specifications.
    • Verify the output voltage, current, and efficiency under typical and extreme conditions.
(For reference only)

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