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LT3383 Recommended for New Designs
The LT3383 is a complete power management solution for advanced portable application processor-based systems. The device contains four synchronous step...
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LT3383 on Analog.com

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LT3383 5A output?

		
	
				

			

									
					    seven.wang1@arrow.com
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on May 28, 2021 
				
			
			
		

		
		                     
				
        		

		    
		    		    
		    			

			    
HI All:


I want to use LT3383 to get a output about 5A, can LT3383 achieve it? If ok(combine the two 2.5A output), any reference design?

			

			
									
		                             
                        

    

                                            
                 LT3383
                
                                                    
                 Buck Regulator Plus LDO
                
                                                    
                 Step-Down (Buck) Regulators
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	
    
	

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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Jun 10, 2021 10:25 AM
            
            
						
			            		
    
		
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    Hi, 
    

    Unfortunately LT3383 does not support paralleling multiple channels. It does not have the multiphase feature, and the two channels are not out of phase. 
    

    It might be possible to parallel general power supply in this method shown below: 
    

     
    

    However, the accuracy of the output might suffer. The balance resistor will also introduce extra loss. The balance of the two channels also depends on the value of the two balance resistors. I do not recommend this method when your total output current is twice as the max current output of a single channel. 
    

    

    Thanks,
    

    Wenwei. 
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    

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