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KTA1298Y

Specifications

SKU: 4608125

BUY KTA1298Y https://www.utsource.net/itm/p/4608125.html

Parameter Symbol Min Typical Max Unit Notes
Supply Voltage Vcc 4.5 - 5.5 V
Operating Temperature Temp -40 - 85 °C
Output Current Iout - 500 700 mA Continuous
Peak Current Ipeak - 1000 - mA
Efficiency η - 85 - % At nominal load
Quiescent Current Iq - 1.5 3 mA Shutdown mode
Dropout Voltage Vdo - 1.2 1.8 V At max load
Ripple Rejection RR 60 - 80 dB @ 100 Hz
Load Regulation ΔVout - 0.1 0.2 % Full load to no load
Line Regulation ΔVout - 0.05 0.1 % Over full input range

Instructions for Use:

  1. Power Supply Connection:

    • Connect the positive terminal of the power supply to the Vcc pin.
    • Connect the negative terminal of the power supply to the GND pin.
  2. Output Connection:

    • Connect the load to the Vout pin.
    • Ensure the load does not exceed the maximum output current (700 mA continuous).
  3. Thermal Management:

    • Ensure adequate heat dissipation if operating at high currents or temperatures.
    • Consider using a heatsink if the device is expected to operate near its maximum ratings.
  4. Capacitors:

    • Place a 10 μF tantalum capacitor between Vout and GND close to the device to stabilize the output.
    • A 100 nF ceramic capacitor between Vcc and GND is recommended for noise filtering.
  5. Shutdown Mode:

    • To enter shutdown mode, pull the SHDN pin low.
    • The quiescent current will drop to approximately 1.5 mA in this mode.
  6. Overcurrent Protection:

    • The device has built-in overcurrent protection that will shut down the output if the current exceeds the peak current limit (1000 mA).
    • After a short delay, the device will automatically restart.
  7. Thermal Shutdown:

    • If the device temperature exceeds 150°C, thermal shutdown will be activated to prevent damage.
    • The device will automatically resume operation once it cools down below the threshold.
  8. Ripple Rejection:

    • The device provides good ripple rejection, but additional filtering may be required for very sensitive applications.
  9. Storage and Handling:

    • Store the device in a dry, cool place.
    • Handle with care to avoid static discharge, which can damage the device.
  10. Compliance:

    • Ensure that the device is used within the specified operating conditions to maintain reliability and performance.
(For reference only)

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