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LTM4625 Output Noise



		

			

									
						Damon Ahn
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Oct 13, 2020 
				
			
			
		


				
		

		    		    
		    
		    	
			
Hi team


Two LTM4625s were designed as the circuit attached.
The same circuit was used to apply to two models.
I made the artwork as below.
The circuit with the GND on the 1-Layer produces noise.
The total number of floors is about 70 layers. 70-layer (about 10-layer GND) There is a GND in between.


 


 




Can you tell me what the problem is?
Is there anything you shouldn't do on the Artwork?


PDF


Thanks


Damon