OPERATION 
CH3 Independent Mode 
 
Background / 
Connection 
For the GDP-3303S the CH3 rating is fixed at 
2.5V/3.3V/5V, 3A. CH3 for the 4303S is variable:  
0~5V,0~3A / 5.001~10V,0~1A .  
 
 
Output rating 
3303S:2.5V/3.3V/5V,3A (fixed)          
4303S:0~5V,0~3A / 5.001~10V,0~1A 
No Tracking 
Series/Parallel 
CH3 does not have tracking series/parallel mode. 
Also, CH3 output is not affected by CH1 and CH2 
modes. 
Panel operation