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LT8490 Recommended for New Designs
The LT8490 is a buck-boost switching regulator battery charger that implements a constant-current constantvoltage (CCCV) charging profile used for most...
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LT8490 on Analog.com

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LT8490 LDO33 voltage is wrong，LT8490 not work



		

			

									
					    YHHT
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Feb 17, 2024 
				
			
			
		
    

				
		
    
		    		    
		    
		    		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  LT8490 
    
    		        		    		    	
			
    According to the 27.4V lithium battery charging circuit in the LT8490 manual, the voltage of the LDO33 is not 3.3V after charging with the solar cell simulator。
    

    

    LDO  2.394V
    

    ADD  2.394V
    

    VDD  2.394V
    

    SWENO: 0V
    

    SWEN: 0V
    

    

    How is the voltage of LDO33 affected? The other parts of the circuit are designed by examples, and the resistance values are configured correctly. We cannot find why the voltage of LDO33 is not 3.3V.
    

    

    Thanks
    

     
    
									
			                
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    Tags: 
                                            
                 hardware
                
                                                    
                 battery charger ic
                
                                                    
                 Buck-Boost Battery Chargers
                
                                                    
                 POWER MANANEMENT
                
                                                    
                 lt8490
                
                                        
                                            
                
                
                                
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