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SI3242P

Specifications

SKU: 11228913

BUY SI3242P https://www.utsource.net/itm/p/11228913.html

Parameter Symbol Min Typ Max Unit Description
Input Voltage VIN 4.5 - 20.0 V Operating input voltage range
Output Voltage VOUT - 1.8 5.5 V Adjustable output voltage
Output Current IOUT - - 2.0 A Maximum continuous output current
Efficiency η - 92 - % Typical efficiency at full load
Dropout Voltage VDO - 0.3 0.6 V Dropout voltage at IOUT = 2A
Quiescent Current IQ - 50 100 μA Quiescent current
Load Regulation - - 0.5 1.0 % Load regulation from 0 to 2A
Line Regulation - - 0.1 0.3 %/V Line regulation over the input voltage range
Ripple Rejection - - 60 70 dB Ripple rejection at 100kHz
Operating Temperature TOP -40 - 125 °C Operating temperature range
Storage Temperature TSTG -65 - 150 °C Storage temperature range
Package Type - - - - - SO-8, SOT-23-5

Instructions for Use

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the specified range (4.5V to 20.0V).
    • Use appropriate input capacitors to stabilize the input voltage.
  2. Output Voltage (VOUT):

    • Set the output voltage using external resistors according to the formula provided in the datasheet.
    • Use a 1% tolerance resistor for better accuracy.
  3. Output Current (IOUT):

    • The maximum continuous output current is 2.0A. Ensure the load does not exceed this limit to avoid damage.
    • Use a heatsink if operating at high currents to maintain safe operating temperatures.
  4. Efficiency (η):

    • The typical efficiency is 92% at full load. Monitor the power dissipation to ensure it remains within safe limits.
  5. Dropout Voltage (VDO):

    • The dropout voltage is typically 0.3V to 0.6V at 2A. Ensure the input voltage is always higher than the output voltage plus the dropout voltage.
  6. Quiescent Current (IQ):

    • The quiescent current is typically 50μA to 100μA. This should be considered when designing low-power systems.
  7. Load Regulation:

    • The load regulation is typically 0.5% to 1.0%. This indicates how much the output voltage changes with varying load conditions.
  8. Line Regulation:

    • The line regulation is typically 0.1% to 0.3% per volt. This indicates how much the output voltage changes with varying input voltage.
  9. Ripple Rejection:

    • The ripple rejection is typically 60dB to 70dB at 100kHz. This helps in filtering out input ripple and noise.
  10. Operating Temperature (TOP):

    • The operating temperature range is -40°C to 125°C. Ensure the device operates within this range to avoid thermal stress.
  11. Storage Temperature (TSTG):

    • The storage temperature range is -65°C to 150°C. Store the device in a dry, cool place to prevent damage.
  12. Package Type:

    • The device is available in SO-8 and SOT-23-5 packages. Choose the package type based on your PCB design requirements.
(For reference only)

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