Products Mentioned

LTC2954 Recommended for New Designs
The LTC2954 is a pushbutton on/off controller that manages system power via a pushbutton interface. An enable output toggles system power while an interrupt...
Datasheet
LTC2954 on Analog.com

Thread Details

  • State Verified Answer
  • Replies 2 replies
  • Subscribers 39 subscribers
  • Views 118 views
  • Users 0 members are here
Related Content

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
Paralleling P-MOSFETs for larger current handling

		
	
				

			

									
					    was1r
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 15, 2026 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user inquires about using the LTC2954CTS8-2 to control two MOSFETs in parallel for increased current handling. The final answer confirms that the LTC2954-2 can drive two MOSFETs in parallel, noting its open-drain EN̅ output can sink around 500uA, but a pull-up resistor is required to ensure proper turn-off of the FETs.
                        	    
    
                
                     AI Generated Content
                
    	    
    
             
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  LTC2954  
    
    		        		    		    
    
		    		    
		    			
    
			    
    I am planning to use the ltc2954cts8-2, the p-mosfet version to control a circuit.
    

    

    i was thinking of paralleling 2 mosfets to drive the circuit with an increased current handling capability.
    

    

    does the chip have enough gate driveability to work with 2 mosfets as we are practically just bringing the voltage to 0?
    
			
    
			
									
		                             
                        

    
    
                                            
                 hardware
                
                                                    
                 mosfet
                
                                                    
                 and Protection
                
                                                    
                 power monitor
                
                                                    
                 ltc2954
                
                                        
                                            
                
                
                                        
                                            
                
                
                                        
                                            
                
                
                                        
                                            
                
                
                                
                    Show More
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                                                                    
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



Parents
	
      
	

    • 
	
      



	
			
		
	



      
	
      
		
      
							
					
      
		
      
		    
		    		    
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jan 28, 2026 8:36 PM
            
            
						
			            		
      
		
										+1
					
	
      

		
		
      
		
      
                                
                                                            
      
					
      Hi  ,
      

      

      Yes, in principle, the LTC2954-2 can drive two mosfets gates in parallel but note that LTC2954CTS8‑2 EN̅ output is an open‑drain control and only meant as an enable signal, not a strong MOSFET gate driver. Since its open-drain, a pull up is typically required at the output. Too large of a pull up can slow down the turn-off of your FETs.
      

      

      The LTC2954-2 only needs to pull the gate node low (asserted) and then release it (deasserted), note that the EN output is specified sinking around 500uA.
      

      

      Best regards,
      

      Gaell
      

      

      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
				
				
				
		
		
      
			
		
      
	
      

      

      • 

	
    



Reply

      


    • 
	
      



	
			
		
	



      
	
      
		
      
							
					
      
		
      
		    
		    		    
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jan 28, 2026 8:36 PM
            
            
						
			            		
      
		
										+1
					
	
      

		
		
      
		
      
                                
                                                            
      
					
      Hi  ,
      

      

      Yes, in principle, the LTC2954-2 can drive two mosfets gates in parallel but note that LTC2954CTS8‑2 EN̅ output is an open‑drain control and only meant as an enable signal, not a strong MOSFET gate driver. Since its open-drain, a pull up is typically required at the output. Too large of a pull up can slow down the turn-off of your FETs.
      

      

      The LTC2954-2 only needs to pull the gate node low (asserted) and then release it (deasserted), note that the EN output is specified sinking around 500uA.
      

      

      Best regards,
      

      Gaell
      

      

      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
				
				
				
		
		
      
			
		
      
	
      

      

      • 


    


Children
	
    No Data