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SCY4103

Specifications

SKU: 546749

BUY SCY4103 https://www.utsource.net/itm/p/546749.html

Parameter Symbol Min Typical Max Unit Notes
Input Voltage VIN 2.7 - 5.5 V
Output Voltage VOUT - 3.3 - V Fixed
Output Current IOUT - 300 - mA
Quiescent Current IQ - 1.5 - μA
Dropout Voltage VDROPOUT - 250 - mV @ IOUT = 300mA, VIN = 3.6V
Load Regulation - - ±1 - % 0mA to 300mA
Line Regulation - - ±1 - % 2.7V to 5.5V
Ripple Rejection - - 70 - dB @ 1kHz
Operating Temp Toper -40 - 85 °C
Storage Temp Tstg -65 - 150 °C

Instructions for Using SCY4103:

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the range of 2.7V to 5.5V.
    • Use appropriate decoupling capacitors (typically 1μF ceramic) close to the VIN pin to stabilize the input.
  2. Output Voltage (VOUT):

    • The output voltage is fixed at 3.3V.
    • No external components are required to set the output voltage.
  3. Output Current (IOUT):

    • The device can provide up to 300mA of output current.
    • For higher current applications, consider using a heat sink or a more powerful regulator.
  4. Quiescent Current (IQ):

    • The quiescent current is typically 1.5μA, making it suitable for low-power applications.
  5. Dropout Voltage:

    • The dropout voltage is typically 250mV at a load current of 300mA and an input voltage of 3.6V.
    • Ensure the input voltage is at least 250mV higher than the output voltage to maintain regulation.
  6. Load Regulation:

    • The load regulation is ±1% from 0mA to 300mA, ensuring stable output voltage over a wide range of load currents.
  7. Line Regulation:

    • The line regulation is ±1% from 2.7V to 5.5V, ensuring stable output voltage over the entire input voltage range.
  8. Ripple Rejection:

    • The ripple rejection is 70dB at 1kHz, effectively filtering out input voltage noise.
  9. Operating Temperature:

    • The device operates reliably from -40°C to 85°C.
    • Avoid operating the device outside this temperature range to prevent damage or reduced performance.
  10. Storage Temperature:

    • Store the device between -65°C and 150°C to ensure long-term reliability.
  11. PCB Layout:

    • Place the SCY4103 as close as possible to the load to minimize trace resistance and inductance.
    • Use wide, short traces for power and ground connections to reduce parasitic effects.
  12. Capacitors:

    • Use high-quality, low-ESR (Equivalent Series Resistance) capacitors for both input and output.
    • A typical configuration includes a 1μF ceramic capacitor on the input and a 1μF ceramic capacitor on the output.

By following these guidelines, you can ensure optimal performance and reliability of the SCY4103 in your application.

(For reference only)

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