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MD1320F

Specifications

SKU: 728839

BUY MD1320F https://www.utsource.net/itm/p/728839.html
Switching Regulator, Voltage-mode, 4A, 287.5kHz Switching Freq-Max, PDSO28, HSOP-28
Parameter Symbol Min Typical Max Unit Notes
Supply Voltage Vcc 4.5 - 5.5 V
Operating Current Iop - 20 - mA
Peak Current Ipk - 50 - mA
Output Voltage Vo - 3.3 - V
Output Ripple Vr - 50 - mV (p-p)
Efficiency η - 85 - %
Operating Temperature Topr -40 - 85 °C
Storage Temperature Tstg -55 - 125 °C
Quiescent Current Iq - 1.5 - mA
Load Regulation ΔVo/ΔIL - 0.5 - mV/mA
Line Regulation ΔVo/ΔVin - 0.1 - mV/V

Instructions for Use

  1. Supply Voltage (Vcc):

    • Ensure the supply voltage is within the range of 4.5V to 5.5V.
    • Exceeding this range can damage the device.
  2. Operating Current (Iop):

    • The typical operating current is 20mA. Ensure the power supply can provide sufficient current.
  3. Peak Current (Ipk):

    • The device can handle peak currents up to 50mA for short durations.
  4. Output Voltage (Vo):

    • The output voltage is typically 3.3V. Ensure your circuit is designed to operate at this voltage.
  5. Output Ripple (Vr):

    • The output ripple is typically 50mV peak-to-peak. Use appropriate filtering if lower ripple is required.
  6. Efficiency (η):

    • The efficiency is typically 85%. This may vary depending on load conditions.
  7. Operating Temperature (Topr):

    • The device is designed to operate between -40°C and 85°C. Avoid operating outside this range to prevent damage.
  8. Storage Temperature (Tstg):

    • Store the device between -55°C and 125°C to ensure long-term reliability.
  9. Quiescent Current (Iq):

    • The quiescent current is typically 1.5mA. This is the current drawn by the device when no load is applied.
  10. Load Regulation (ΔVo/ΔIL):

    • The load regulation is typically 0.5mV/mA. This indicates how much the output voltage changes with load current.
  11. Line Regulation (ΔVo/ΔVin):

    • The line regulation is typically 0.1mV/V. This indicates how much the output voltage changes with input voltage.

Additional Notes:

  • Always use appropriate decoupling capacitors near the power input to reduce noise and improve stability.
  • Ensure proper heat dissipation if the device is operating at high currents or temperatures.
  • Refer to the datasheet for more detailed information and specific application notes.
(For reference only)

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