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LT8410-1  resistor selection for 18V output

		
	
				

			

									
					    lus
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 5, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  LT8410-1 
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hello,
    

    I would like to get support for Linear's LT8410-1 boost converter.
    

    I've read through the datasheet, but I can't find an expression for calculating the resistor divider for the 18V output.
    

    Thank you for any support.
    
			
    
			
									
		                             
                        

    
    
                                            
                 Datasheet/Specs
                
                                                    
                 resistor selection
                
                                                    
                 lt8410-1
                
                                                    
                 dcdc converter
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			


				
	









	
      
	

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							FormerMember
					
      
		
      
		    
		    		    
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on May 7, 2023 11:31 PM
            
            
						
			            		
    
		
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    Hello,
    

    Refer to the snipped photo below.
     
    

    

    Calculating VFBP with an output voltage of 18V, Vfbp should be ~0.57V.
     
    

    

    Since VREF is 1.235V, you should calculate your R1 & R2 to have a drop of ~0.57V at the VFBP pin.
    

     
    

    Regards,
    

    Jhun