Instructions for Using PMB3960

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the range of 4.5V to 28V.
   • Use appropriate input capacitors to filter noise and stabilize the input voltage.

2. Output Voltage (V_OUT):

   • The output voltage can be adjusted using external resistors R1 and R2.
   • The formula to calculate the output voltage is: ( V_ = 1.23 left(1 + fracright) ).

3. Output Current (I_OUT):

   • The PMB3960 can provide up to 3A of continuous output current.
   • Ensure the load does not exceed this limit to avoid overheating or damage.

4. Switching Frequency (f_SW):

   • The switching frequency is fixed at 1.2 MHz.
   • This high frequency allows for smaller external components but may increase switching losses.

5. Efficiency (η):

   • The efficiency is typically around 92% under optimal conditions.
   • Monitor the temperature and ensure proper heat dissipation to maintain efficiency.

6. Dropout Voltage (V_DO):

   • The dropout voltage is typically 0.5V at full load.
   • Ensure the input voltage is sufficiently higher than the output voltage to maintain regulation.

7. Quiescent Current (I_Q):

   • The quiescent current is 2.5mA with no load.
   • This low quiescent current helps in reducing power consumption in standby mode.

8. Shutdown Current (I_SHDN):

   • The shutdown current is 1μA when the shutdown pin is pulled to ground.
   • Use this feature to turn off the regulator when not in use to save power.

9. Operating Temperature (T_OP):

   • The operating temperature range is from -40°C to 125°C.
   • Ensure the device is used within this range to prevent thermal stress.

10. Storage Temperature (T_STG):

    • The storage temperature range is from -40°C to 150°C.
    • Store the device in a dry and cool place to prevent damage.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Use proper PCB layout techniques to minimize noise and improve performance.
• Consider adding overvoltage and overcurrent protection circuits for enhanced reliability.