| Parameters | 
                                    
                                                                                                            
                                        | Mfr | 
                                        Rohm Semiconductor | 
                                    
                                                                        
                                        | Series | 
                                        - | 
                                    
                                                                        
                                        | Package | 
                                        Tape & Reel (TR) | 
                                    
                                                                        
                                        | Product Status | 
                                        Obsolete | 
                                    
                                                                        
                                        | Function | 
                                        Step-Down | 
                                    
                                                                        
                                        | Output Configuration | 
                                        Positive | 
                                    
                                                                        
                                        | Topology | 
                                        Buck | 
                                    
                                                                        
                                        | Output Type | 
                                        Adjustable | 
                                    
                                                                        
                                        | Number of Outputs | 
                                        1 | 
                                    
                                                                        
                                        | Voltage - Input (Min) | 
                                        4.5V | 
                                    
                                                                        
                                        | Voltage - Input (Max) | 
                                        18V | 
                                    
                                                                        
                                        | Voltage - Output (Min/Fixed) | 
                                        0.8V | 
                                    
                                                                        
                                        | Voltage - Output (Max) | 
                                        18V | 
                                    
                                                                        
                                        | Current - Output | 
                                        3A | 
                                    
                                                                        
                                        | Frequency - Switching | 
                                        100kHz ~ 600kHz | 
                                    
                                                                        
                                        | Synchronous Rectifier | 
                                        Yes | 
                                    
                                                                        
                                        | Operating Temperature | 
                                        -20°C ~ 85°C (TA) | 
                                    
                                                                        
                                        | Mounting Type | 
                                        Surface Mount | 
                                    
                                                                        
                                        | Package / Case | 
                                        20-VSSOP (0.173", 4.40mm Width) Exposed Pad | 
                                    
                                                                        
                                        | Supplier Device Package | 
                                        20-HTSSOP-B | 
                                    
                                                                        
                                        | Base Product Number | 
                                        BD8649 | 
                                    
                                                                        
                                        | RoHS Status | 
                                        ROHS3 Compliant | 
                                    
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 
                                        3  (168 Hours) | 
                                    
                                                                        
                                        | REACH Status | 
                                        REACH Unaffected | 
                                    
                                                                        
                                        | ECCN | 
                                        EAR99 | 
                                    
                                                                        
                                        | HTSUS | 
                                        8542.39.0001 | 
                                    
                                                                        
                                        | Standard Package | 
                                        2,500 | 
                                    
                                                                                                        
                            
                         
                                                Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 20-VSSOP (0.173", 4.40mm Width) Exposed Pad