Instructions for Using TL3845BP

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Use appropriate decoupling capacitors (typically 10μF ceramic) close to the input pin to filter noise.

2. Output Voltage (V_OUT):

   • The output voltage is fixed at 1.2V. No external resistors are required for setting the output voltage.

3. Output Current (I_OUT):

   • The maximum continuous output current is 1.5A. Ensure the load does not exceed this limit to avoid overheating or damage.

4. Quiescent Current (I_Q):

   • The quiescent current is typically 20μA when there is no load. This is important for low-power applications.

5. Dropout Voltage (V_DROP):

   • The dropout voltage is 1.2V at full load (1.5A). Ensure the input voltage is at least 1.2V higher than the output voltage to maintain regulation.

6. Load Regulation:

   • The load regulation is 0.5%, meaning the output voltage will vary by 0.5% over the load range from 0mA to 1.5A.

7. Line Regulation:

   • The line regulation is 0.05% per volt, indicating the output voltage will change by 0.05% for each volt change in the input voltage.

8. PSRR (Power Supply Rejection Ratio):

   • The PSRR is 60dB at 1kHz, which means the regulator can effectively reject 60dB of noise from the input supply at this frequency.

9. Operating Temperature (T_OP):

   • The device is rated to operate from -40°C to 125°C. Ensure the ambient temperature and any heat dissipation measures are considered to keep the device within this range.

10. Storage Temperature (T_STG):

    • The storage temperature range is -65°C to 150°C. Store the device in a dry environment to prevent moisture damage.

11. Mounting and Layout:

    • Place the TL3845BP in a well-ventilated area to ensure proper heat dissipation.
    • Use short, wide traces for power connections to minimize voltage drops and inductance.
    • Place bypass capacitors as close as possible to the input and output pins to reduce noise and improve stability.

12. Protection Features:

    • The TL3845BP includes thermal shutdown and current limiting features to protect against overtemperature and overload conditions.

By following these guidelines, you can ensure reliable operation and optimal performance of the TL3845BP in your application.