Instructions for Use:

1. Input Voltage:

   • Ensure the input voltage is within the range of 20V to 35V to avoid damage or improper operation.

2. Output Voltage:

   • The output voltage is regulated to 18V. Verify that this matches your application requirements.

3. Output Current:

   • The device can provide up to 1.5A continuously. Ensure that the load does not exceed this limit to prevent overheating or failure.

4. Line Regulation:

   • The output voltage changes by less than 0.04% for input voltage variations from 20V to 35V.

5. Load Regulation:

   • The output voltage changes by less than 0.1% for load current variations from 0 to 1.5A.

6. Dropout Voltage:

   • At full load (1.5A), the dropout voltage is 2.5V. Ensure that the input voltage is at least 20.5V to maintain regulation.

7. Quiescent Current:

   • The quiescent current is typically 5mA at 25V input with no load. This should be considered in low-power applications.

8. Thermal Management:

   • The thermal resistance (θJA) is 65°C/W for the TO-220 package. Use appropriate heatsinking if the device will operate near its maximum power dissipation.

9. Operating Temperature:

   • The junction temperature should be kept between -40°C and 125°C to ensure reliable operation.

10. Storage Temperature:

    • Store the device between -65°C and 150°C to prevent damage.

11. Mounting:

    • Ensure proper mounting and soldering techniques to avoid mechanical stress and thermal issues.

12. Capacitors:

    • Use input and output capacitors as recommended to stabilize the regulator and filter noise. Typically, a 0.33μF ceramic capacitor on the input and a 0.1μF ceramic capacitor on the output are sufficient.

13. PCB Layout:

    • Keep the input and output leads short to minimize noise and improve stability.

14. Safety:

    • Always follow safety guidelines when handling and testing high-voltage circuits.