Test Procedure for the NCP57152MNADGEVB Evaluation Board REGULATED DC SUPPLY A V V ELECTRONIC LOAD A Figure 1: Output Voltage Test Setup Test Procedure 1 Vout Test 1.1 Connect the test setup as shown in Figure 1. 1.2 Apply an input voltage, Vin = 2.5 V dc 1,3 Apply Iout = 10 mA load. 1.4 Check that Vout is 1.5 V 1.5 Increase Iout load to 1.5 A 1.6 Check that Vout is 1.5 V 1.7 Power down the load 1.8 Power down Vinput REGULATED DC SUPPLY 2 Vflag Test 2.1 Connect the test setup as shown in Figure 2. 2,2 Apply an input voltage, Vin = 1.8 V dc MUR805G diode works like Output Voltage clamp. The Output voltage is out of regulation and the NCP57152 operates in overload mode. 2.3 Check that Vout is roughly 0.7V and Vflag is less than 0.2 V 2.4 Power down Vinput In Overload mode the power dissipated in NCP57152 LDO and MUR805G diode is high and the devices can get very hot in a short time. That is why run this test as fast as possible. 2.5 End of test A V V V Vflag Vout MUR805G Figure 2: FLAG Voltage Test Setup 11/15/2012 -1- www.onsemi.com