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LTspice® is a powerful, fast, and free SPICE simulator software, schematic capture and waveform viewer with enhancements and models for improving the simulation...
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LT6658 Recommended for New Designs
The LT6658 is a family of precision dual output references combining the performance of a precision voltage reference and a linear regulator that we call...
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LT6658 on Analog.com

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Standard SPICE model for the LT6658-1.2

		
	
				

			

									
					    przemhb
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 7, 2025 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user inquired about a standard SPICE model for the LT6658-1.2, as the LTSpice model uses unique syntax incompatible with other simulators like Micro-Cap. The final answer stated that Analog Devices only supports LTspice modeling for this product and recommended using LTspice for circuit simulation.
                        	    
    
                
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    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  LT6658  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hi,
    

    I know Analog provides LTSpice model for the LT6658-1.2. Unfortunately, it leverages many unique features of LTSpice syntax and cannot be used in other SPICE simulators like, for example, Micro-Cap.
    

    Hence, I am looking for a standard SPICE model of the LT6658-1.2.
    
			
    
			
									
		                             
                        

    
    
                                            
                 Datasheet/Specs
                
                                                    
                 spice
                
                                                    
                 Series Voltage References
                
                                                    
                 LT6658
                
                                                    
                 voltage references
                
                                        
                                            
                
                
                                
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Nov 7, 2025 12:37 PM
            
            
						
			            		
      
		
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      We only support LTspice modeling for this product. May I recommend that you try LTspice for your circuit?
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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                on Nov 12, 2025 7:22 AM
            
            
												
						in reply to BrendanWhelan
					
										
			            		
        
		
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        LTSpice is a very good simulator, which I know since its release and use it. However, it is not my first choice. Mico-Cap outperforms LTSpice in almost every functional field. Nothing surprising taking into account its initial release is 17 years older, it was a paid software, developed by a team and not by a single person like LTSpice.
        

        Nota bene - maybe Analog could buy Micro-Cap's sources and revive its development?
        

        When I come across LTSpice model, which uses some non-standard extensions to SPICE syntax, I usually adapt it. Unfortunately, this particular model uses many such unique extensions, which are tricky to replace with standard ones. As a last resort, I simulate some circuits with a model like this, in LTSpice.
        

        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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                on Nov 12, 2025 7:22 AM
            
            
												
						in reply to BrendanWhelan
					
										
			            		
          
		
										0
					
	
          

		
		
          
		
          
                                
                                                            
          
					
          LTSpice is a very good simulator, which I know since its release and use it. However, it is not my first choice. Mico-Cap outperforms LTSpice in almost every functional field. Nothing surprising taking into account its initial release is 17 years older, it was a paid software, developed by a team and not by a single person like LTSpice.
          

          Nota bene - maybe Analog could buy Micro-Cap's sources and revive its development?
          

          When I come across LTSpice model, which uses some non-standard extensions to SPICE syntax, I usually adapt it. Unfortunately, this particular model uses many such unique extensions, which are tricky to replace with standard ones. As a last resort, I simulate some circuits with a model like this, in LTSpice.
          

          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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