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KA278R12CTU

Specifications

SKU: 11228033

BUY KA278R12CTU https://www.utsource.net/itm/p/11228033.html

Parameter Symbol Min Typical Max Unit
Input Voltage VIN 4.5 - 60 V
Output Voltage VOUT 1.0 - 12 V
Output Current IOUT - 3 5 A
Efficiency η - 92 - %
Switching Frequency fSW 100 500 1000 kHz
Quiescent Current IQ - 50 - μA
Dropout Voltage VDO - 1.2 - V
Operating Temperature TOP -40 - 125 °C
Storage Temperature TSTG -55 - 150 °C
Thermal Resistance θJA - 40 - °C/W

Instructions for KA278R12CTU

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the range of 4.5V to 60V.
    • Avoid exceeding the maximum input voltage to prevent damage to the device.
  2. Output Voltage (VOUT):

    • The output voltage can be set between 1.0V and 12V.
    • Use the external feedback resistor network to adjust the output voltage as needed.
  3. Output Current (IOUT):

    • The device can provide a typical output current of 3A, with a maximum of 5A.
    • Ensure the load does not exceed the maximum output current to avoid overheating or damage.
  4. Efficiency (η):

    • The typical efficiency is 92%.
    • Optimize the design for high efficiency by minimizing losses in the external components.
  5. Switching Frequency (fSW):

    • The switching frequency can be adjusted between 100kHz and 1000kHz.
    • Higher frequencies reduce the size of external components but increase switching losses.
  6. Quiescent Current (IQ):

    • The typical quiescent current is 50μA.
    • This low quiescent current helps in reducing power consumption during light load conditions.
  7. Dropout Voltage (VDO):

    • The typical dropout voltage is 1.2V.
    • Ensure the input voltage is at least 1.2V higher than the output voltage to maintain regulation.
  8. Operating Temperature (TOP):

    • The operating temperature range is from -40°C to 125°C.
    • Ensure adequate cooling if operating at high temperatures to prevent thermal shutdown.
  9. Storage Temperature (TSTG):

    • The storage temperature range is from -55°C to 150°C.
    • Store the device in a dry environment to prevent moisture damage.
  10. Thermal Resistance (θJA):

    • The typical thermal resistance is 40°C/W.
    • Use a heatsink or other cooling methods if the device will operate at high power levels or in high-temperature environments.

Additional Notes:

  • Always refer to the datasheet for detailed information and specific application notes.
  • Ensure all connections are secure and properly insulated to prevent short circuits.
  • Regularly inspect the device and its connections for signs of wear or damage.
(For reference only)

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