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ADP162 Production
TheADP160/ADP161/ADP162/ADP163are ultralow quiescent current, low dropout, linear regulators that operate from 2.2 V to 5.5 V and provide up to 150 mA...
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ADP162 on Analog.com

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LDO Voltage Regulator ADP162: use a pull-down external resistor

		
	
				

			

									
					    franmartin
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Aug 30, 2017 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    Hi, I am using the LDO Voltage Regulator ADP162 but I do not find in the datasheet if it is necessary to use a pull-down external resistor in the enable pin. In principle, this enable pin will be controlled by a GPIO pin of the MSP430G2553 MCU. Thank you.
    
 
    Best regards,
    Fran Martin.
    
			
    
			
									
		                             
                        

    
    
                                            
                 adp162
                
                                                    
                 LDO Linear Regulators
                
                                                    
                 Positive Linear Regulators (LDO)
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Aug 31, 2017 3:01 AM
            
            
						
			            		
      
		
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      Hi, Fran.

      
 
      It is recommended to put a pull-down resistor in the EN pin. This ensures that the LDO is in shutdown mode and avoids erratic/unpredictable behavior as compared to when left floating. Make sure that the voltage drop cause by the pull-down resistor and the EN leakage (1uA) is less than the EN input logic low voltage threshold (0.4V). In this case, a 10 kohm resistor will do as pull down in the EN pin.

      
 
      Regards, 
       Errgy
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
				
				
				
		
		
      
			
		
      
	
      

      

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