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LTC4359 Recommended for New Designs
The LTC4359 is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode. It controls the forward...
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LTC4359 on Analog.com

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High Voltage Application LTC4359

		
	
				

			

									
					    ldga
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 10, 2025 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user seeks feedback on their LTC4359 schematic before ordering a test board. The final answer recommends increasing high-voltage spacing, ensuring Q2 has sufficient SOA for inrush and load current, and using a 10Ω gate resistor for Q2 instead of 100k, placed close to the NFET's gate.
                        	    
    
                
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    Category: Hardware
    
    		        		            		    
    Product Number:  LTC4359  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hello,
    

    I have added my schematic to this message. Prior to ordering a test board with the LTC4359, I wanted to run the schematic by your team to see if there were any recommendations for changes that need to be made to my implementation of the LTC4359.
    

    If you have any suggestions, please let me know. 
    

    Thank you!
    

     
    
			
    
			
									
		                             
                        

    
    
                                            
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