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LTC3633A-2 Production
The LTC3633A-2 is a high efficiency, dual-channel monolithic synchronous buck regulator using a controlled on-time, current mode architecture, with phase...
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LTC3633A-2 on Analog.com

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Absolute maximum voltage of Boost-SW of LTC3633A-2



		

			

									
					    kshigemori281
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 3, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  LTC3633A-2 
    
    		        		    		    	
			
    Hi,
    

    Is it correct that is absolute maximum voltage of Boost-SW voltage.
    I confirmed INTVcc voltage that is between 3.1V to 3.5V on datasheet. I also confirmed nearly 3.6V at Boost-SW voltage on board .
    It may think that reason of capacitor between Boost-SW.
    Therefore, I concern that exceed the absolute maximum voltage.
    

    Best Regards
    

    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 hardware
                
                                                    
                 LTC3633A-2
                
                                                    
                 Step-Down (Buck) Regulators
                
                                                    
                 Multiple Output Buck Regulators
                
                                
            
    
    
    

		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		






			

			
    
			
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												    FormerMember
											
      
					
      
						
							
															FormerMember
													
												
						
                		
    
				
						
						                		
						
						
						
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    Hello,
    

    

    Since the boost-sw pin is internally referenced to INTVCC, I think this should be fine as the controller regulates it internally.
    

    

    Regards,
    

    Jhun
    
				    
			
											
								
		
    
		
    
					
    
	
	
    















    
	
    
	
    
					



			


				
	









	
      
	

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							FormerMember
					
      
		
      
			
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									FormerMember
							        
			
			
			
    
            
			                            
                                                                                                                        
            
				
			
            
					
    
	
    

		
		
    
					
    Hello,
    

    

    Since the boost-sw pin is internally referenced to INTVCC, I think this should be fine as the controller regulates it internally.
    

    

    Regards,
    

    Jhun
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
						
				
				
		
		
    
			
		
    
	
    

    


	

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						in reply to FormerMember
					
									
      
	
      

		
		
      
					
      Hi,
      


      I'm sorry it is my fault. I confirmed GND is float a little bit.
      Thank you for your support.
      


      Best Regards
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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