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LTC3877 Recommended for New Designs
The LTC3877 is a VID-programmable, constant frequency current mode step-down controller using an advanced and proprietary architecture. This new architecture...
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LTC3877 on Analog.com

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VID Output Voltage Programming Buck Regulator

		
	
				

			

									
					    KLN
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Mar 9, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    Hi,
    

    We are looking for regulator with VID Controller with VID Pins (Not through digital PMBUS Interface)
    

     With the following specification:
    

      

    1. Input Voltage: 12V
      2. 

    2. Output voltage: 0.9V to 1.1V (VID Control)
      3. 

    3. Output current: 30A to 40A
      4. 

    4. VID Bits: 5 or 6 
      5. 

    

    

    Please suggest us the part which is similar to LTC3877, but with the lesser current.
    

    LTC3877 supports upto 60A, We are looking in the range of 30A range. 
    
			
    
			
									
		                             
                        

    
    
                                            
                 High Input Voltage Buck Regulators
                
                                                    
                 LTC3877
                
                                                    
                 Step-Down (Buck) Regulators
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			


				
	









	
            
						
                            
            
            				
            
                on Mar 12, 2023 10:44 PM
            
            
												
						in reply to KLN
					
										
			            		
    
		
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    Hi KLN,
    

    The LTC3877 is a good fit for your application. It is only a controller, so depending on your design, it can support current greater than 60A as well as below 40A. It will be dependent on the external components you will be using.
    

    

    Regards,
    

    Jhun
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
				
				
				
		
		
    
			
		
    
	
    

    


	

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                on Mar 13, 2023 8:12 AM
            
            
												
						in reply to FormerMember
					
										
			            		
      
		
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      Hi  
      

      Thanks
      

      This LTC3877  is 60A part.
      

      We are looking in 30A part.
      

      Please suggest other parts with VID control options.
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
				
				
				
		
		
      
			
		
      
	
      

      

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                on Mar 21, 2023 6:11 AM
            
            
												
						in reply to KLN
					
										
			            		
        
		
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        Hi 
        

        Please update us.
        

        

        Also, Please let us know the difference between LTC3877 and LTC1708-PG
        

        What is the maximum output current supported for LTC1708-PG?
        

        This can be used for our requirement?
        

        Any other VID control regulators, please suggest
        

        

        Thanks
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
				
				
				
		
		
        
			
		
        
	
        

        

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                on Mar 21, 2023 6:26 AM
            
            
												
						in reply to KLN
					
										
			            		
          
		
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          Hi
          

          

          What is the difference between LTC1709-7 and LTC1709?
          

          Is the LTC1709-7 part available to order?
          

          What is the maximum current supported by LTC1709-7?
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
				
				
				
		
		
          
			
		
          
	
          

          

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                on Mar 22, 2023 4:47 PM
            
            
												
						in reply to KLN
					
										
			            		
            
		
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            Hi  and Team,
            

            Please look into this
            
			
            

		
			
	      

		
		
	
            
	
            
		
            
			
		
            
	
            
	
            
		
						
						
				
				
				
				
		
		
            
			
		
            
	
            

            

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							FormerMember
					
            
		
            
		    
		    		    
			
				
									FormerMember
							        
			
			
			
            
						
                            
            
            				
            
                on Mar 22, 2023 5:38 PM
            
            
												
						in reply to KLN
					
										
			            		
            
		
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            As I have already mentioned, the parts your mentioning are controllers. The maximum/minimum current will be dependent on your design and not on the part itself as it is a CONTROLLER. The external components you use will determine the current it can supply.
            
			
            

		
			
	      

		
		
	
            
	
            
		
            
			
		
            
	
            
	
            
		
						
						
				
				
				
				
		
		
            
			
		
            
	
            

            

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