Below is the parameter table and instructions for the L4781TA:

L4781TA Parameter Table

Instructions for Using L4781TA

1. Input Connection:

   • Connect the input voltage (VIN) to the input pin of the L4781TA.
   • Ensure the input voltage is within the specified range (4.5V to 28V).

2. Output Connection:

   • Connect the output pin to the load or circuit requiring a regulated 5V supply.
   • The maximum output current should not exceed 3A.

3. Ground Connection:

   • Connect the ground (GND) pin to the common ground of the system.

4. Capacitors:

   • Place a 10μF ceramic capacitor close to the input pin to filter out noise and stabilize the input voltage.
   • Place a 10μF ceramic capacitor close to the output pin to ensure stable output regulation.

5. Thermal Management:

   • Ensure adequate heat dissipation by mounting the L4781TA on a heatsink if operating at high output currents.
   • Monitor the temperature to avoid exceeding the thermal shutdown threshold (160°C).

6. Protection:

   • The L4781TA includes built-in thermal shutdown and short-circuit protection.
   • However, it is recommended to add external fuses or current-limiting resistors for additional protection.

7. Operating Conditions:

   • Operate the device within the specified temperature range (-40°C to 125°C).
   • Store the device in a dry environment within the storage temperature range (-55°C to 150°C).

8. Testing:

   • Before connecting to the final application, test the L4781TA with a known load to ensure proper operation.
   • Measure the output voltage to confirm it is within the specified tolerance (5.0V).

By following these instructions, you can ensure reliable and efficient operation of the L4781TA in your application.