| Parameters | 
                                                                                                            
                                        | Mfr | Unitrode | 
                                                                        
                                        | Series | - | 
                                                                        
                                        | Package | Bulk | 
                                                                        
                                        | Product Status | Active | 
                                                                        
                                        | Output Type | Transistor Driver | 
                                                                        
                                        | Function | Step-Up, Step-Up/Step-Down | 
                                                                        
                                        | Output Configuration | Positive | 
                                                                        
                                        | Topology | Boost, Flyback, SEPIC | 
                                                                        
                                        | Number of Outputs | 1 | 
                                                                        
                                        | Output Phases | 1 | 
                                                                        
                                        | Voltage - Supply (Vcc/Vdd) | 1.8V ~ 8V | 
                                                                        
                                        | Frequency - Switching | 150kHz ~ 1.2MHz | 
                                                                        
                                        | Duty Cycle (Max) | 88% | 
                                                                        
                                        | Synchronous Rectifier | Yes | 
                                                                        
                                        | Clock Sync | Yes | 
                                                                        
                                        | Serial Interfaces | - | 
                                                                        
                                        | Control Features | Enable, Frequency Control, Low Battery, Reset | 
                                                                        
                                        | Operating Temperature | 0°C ~ 70°C (TA) | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 
                                                                        
                                        | Supplier Device Package | 20-TSSOP | 
                                                                        
                                        | Base Product Number | UCC39422 | 
                                                                        
                                        | RoHS Status | RoHS non-compliant | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                        
                                        | REACH Status | REACH Unaffected | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 8542.39.0001 | 
                                                                        
                                        | Standard Package | 1 | 
                                                                                                        
                            
                         
                                                Boost, Flyback, SEPIC Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 20-TSSOP