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ADP5074 Recommended for New Designs
The ADP5074 is a high performance dc-to-dc inverting regulator used to generate negative supply rails. The input voltage range of 2.85 V to 15 V supports...
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ADP5074 on Analog.com

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How to generate negative power with bucks？

		
	
				

			

									
					    houwenhe
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 4, 2024 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user asks if Buck ICs can generate negative voltage and how to determine their suitability. The final answer states that any Buck IC can be used, but the datasheet must be consulted for design considerations. The user is directed to an article on using the MAX17501 and MAX17502 for negative output voltage applications. The user also requests to ignore the question about GND pin connections.
                        	    
    
                
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    Category: Hardware
    
    		        		            		    
    Product Number:  ADP5074  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hi，guys
    

    As we all know, Buck and Buck-Boost are only different in the connection of the inductor and the diode or MOSFET, Buck-Boost can be used to generate negative voltage。
    

      

    1. so can all Buck ICs be used to generate negative voltage? Or some specific Buck ICs?
      2. 

    2. How can I quickly determine if a Buck IC can be used to generate negative power?
      3. 

    3. When using Buck to generate negative pressure, I noticed that there are two connections, one is to connect the GND pin to ground, and the other is to connect the GND pin to Vout, what is the difference between the two?
      4. 

    
			
    
			
									
		                             
                        

    
    
                                            
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                 ADP5074
                
                                                    
                 Inverting Regulators
                
                                                    
                 switching regulators
                
                                                    
                 inverting convertor
                
                                        
                                            
                
                
                                
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