Below is the parameter table and instructions for the LM2594M-3.3 voltage regulator.

LM2594M-3.3 Parameter Table

Instructions for LM2594M-3.3

1. Input Voltage:

   • Ensure the input voltage is within the range of 7.5V to 40V.
   • Use appropriate input capacitors (typically 10μF to 100μF) to filter the input voltage and reduce ripple.

2. Output Voltage:

   • The output voltage is fixed at 3.3V.
   • Use an output capacitor (typically 10μF to 100μF) to stabilize the output voltage and reduce ripple.

3. Output Current:

   • The maximum continuous output current is 3.0A.
   • Ensure that the load does not exceed this current to avoid overheating or damage to the regulator.

4. Thermal Considerations:

   • The LM2594M-3.3 has a thermal shutdown feature to protect against overtemperature conditions.
   • For high current applications, consider using a heatsink to improve heat dissipation.

5. PCB Layout:

   • Place the input and output capacitors as close as possible to the regulator to minimize inductance and improve stability.
   • Use wide traces for power paths to reduce resistance and heat generation.

6. Capacitor Selection:

   • Use low ESR (Equivalent Series Resistance) capacitors for both input and output to ensure stable operation.
   • Ceramic capacitors are recommended for their low ESR and high frequency performance.

7. Inductor Selection:

   • Choose an inductor with a saturation current rating higher than the maximum output current.
   • Typical inductor values range from 10μH to 100μH, depending on the application requirements.

8. Startup and Shutdown:

   • The regulator will start up when the input voltage exceeds the minimum operating voltage.
   • The regulator will shut down if the input voltage drops below the dropout voltage or if the temperature exceeds the thermal shutdown threshold.

9. Testing:

   • Before finalizing the design, test the regulator under various load conditions to ensure stable operation and proper regulation.
   • Measure the output voltage and current to verify that they meet the specifications.

By following these instructions, you can ensure reliable and efficient operation of the LM2594M-3.3 voltage regulator in your application.