Test Procedure for the NCV891330-3.3V DEMO BOARD IOUT Multimeter DC electronic Load Multimeter VOUT VIN VEN Required Equipment 2 x DC voltage source 1 x DC electronic load 2 x Multimeters 11/26/2014 1 www.onsemi.com Test Procedure: 1. Connect the test setup as shown above. 2. Make sure the load is not enabled. 3. Apply an enable voltage VEN=0V. Apply an input voltage, VIN = 13.2 V. VOUT should be 0V. 4. Apply an enable voltage VEN=3V. Verify that the output voltage is 3.3 V +/-0.1 V. 5. Set up the load to 2.5A and enable it. Verify that the output voltage is still 3.3 V +/-0.1 V. 6. Change the input voltage to 39 V. Verify that the output voltage is 0 V. 7. Change the input voltage to 36 V. Verify that the output voltage is 3.3 V +/-0.1 V. 8. Change the input voltage to 3.8 V. Verify that the output voltage is above 2.5 V. 9. Change the input voltage to 3.0 V. Verify that the output voltage is 0 V. 10. Change the input voltage to 4.5 V. Verify that the output voltage is 3.3 V +/-0.1 V. 11. Apply an enable voltage VEN=0V. VOUT should be 0V. 12. Turn off the DC sources. 11/26/2014 2 www.onsemi.com