| Parameters | 
                                                                                                                        
                                                | Series | Automotive, AEC-Q100 | 
                                                                                    
                                                | Package | Tape & Reel (TR) | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Output Type | PWM Signal | 
                                                                                    
                                                | Function | Step-Down | 
                                                                                    
                                                | Output Configuration | Positive | 
                                                                                    
                                                | Topology | Buck | 
                                                                                    
                                                | Number of Outputs | 1 | 
                                                                                    
                                                | Output Phases | 2 | 
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 4.5V ~ 40V | 
                                                                                    
                                                | Frequency - Switching | 100kHz ~ 1.6MHz | 
                                                                                    
                                                | Duty Cycle (Max) | - | 
                                                                                    
                                                | Synchronous Rectifier | Yes | 
                                                                                    
                                                | Clock Sync | Yes | 
                                                                                    
                                                | Serial Interfaces | I²C, PMBus, SMBus | 
                                                                                    
                                                | Control Features | Enable, Frequency Control, Power Good, Soft Start, Watchdog | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 125°C (TA) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 28-VFQFN Exposed Pad | 
                                                                                    
                                                | Supplier Device Package | 28-QFN (5x5) | 
                                                                                    
                                                | Base Product Number | MCP19123 | 
                                                                                    
                                                | RoHS Status | ROHS3 Compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.31.0001 | 
                                                                                    
                                                | Standard Package | 3,300 | 
                                                                                    
                                                | Mfr | Microchip Technology | 
                                                                                                                
                                
                             
                                                Buck Regulator Positive Output Step-Down I²C, PMBus, SMBus DC-DC Controller IC 28-QFN (5x5)