FAN2514S33X

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FAN2514S33X LDO Voltage Regulator 3.3V 170mV/0.17V With Enable Pin SOT-153/SOT23-5 marking A63B Short-Circuit Protection Over-Temperature Protection

Instructions for Using FAN2514S33X:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 4.5V to 16V.
   • Use appropriate input filtering capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be set using a feedback resistor divider connected to the FB pin.
   • Calculate the resistor values using the formula: VOUT = VREF * (1 + R1/R2), where VREF is typically 0.8V.

3. Switching Frequency (fSW):

   • The switching frequency is fixed at 600kHz.
   • This helps in selecting the appropriate inductor and capacitor values for the output filter.

4. Quiescent Current (IQ):

   • The quiescent current is typically 1.2mA at 5V input with no load.
   • This value should be considered when designing the power supply for low-power applications.

5. Load Regulation:

   • The load regulation is 0.5% over the load range from 10mA to 1A.
   • Ensure that the load does not exceed 1A to maintain the specified performance.

6. Line Regulation:

   • The line regulation is 0.1% per volt over the input voltage range from 4.5V to 16V.
   • This ensures stable output voltage even with variations in input voltage.

7. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.3V at 1A output current and 5V input.
   • This parameter is crucial for low-voltage applications where the input and output voltages are close.

8. Soft-Start Time (tSS):

   • The soft-start time is typically 2ms.
   • This helps in reducing inrush current and stress on the components during startup.

9. Thermal Shutdown Temperature (TSD):

   • The device will shut down if the temperature exceeds 160°C.
   • Ensure proper heat dissipation and cooling to prevent thermal shutdown.

10. Short-Circuit Protection:

    • The device has built-in short-circuit protection with auto-restart functionality.
    • In case of a short circuit, the device will automatically restart after a hiccup delay.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Proper PCB layout and component selection are crucial for optimal performance and reliability.