NCP1422GEVB

Test Procedure for the NCP1422GEVB Evaluation Board 1. 2. 3. 4. 5. Connect the test setup as shown above. TURN OFF the JP; (enable the device). Set the Power Supply to 3.0V and apply to TP1, TP2, (T1, T2). Apply 500mA loading form the electric load. Check the input current (IIN), output voltage (VOUT) and output ripple;  For VOUT = 3.3V; JP2 OFF IIN = 590.7mA ~ 608.7mA VOUT = 3.267 ~ 3.367V VRIPPLE ≤ 35mV  For VOUT = 5V; JP2 ON IIN = 931.07mA ~ 957.4mA VOUT = 4.859 ~ 5.0075V VRIPPLE ≤ 40mV 6. Check the switching waveform at scope CH1 to see whether it is a normal continuous conduction mode switching node waveform and switching ON time (TON) is between 0.46 µs ~ 1.15 µs 6/24/2014 -1- www.onsemi.com