| Parameters | 
                                                                                                            
                                        | Mfr | Unitrode | 
                                                                        
                                        | Series | - | 
                                                                        
                                        | Package | Bulk | 
                                                                        
                                        | Product Status | Active | 
                                                                        
                                        | Output Type | Transistor Driver | 
                                                                        
                                        | Function | Step-Up, Step-Down, Step-Up/Step-Down | 
                                                                        
                                        | Output Configuration | Positive, Isolation Capable | 
                                                                        
                                        | Topology | Boost, Buck, Flyback, Forward | 
                                                                        
                                        | Number of Outputs | 1 | 
                                                                        
                                        | Output Phases | 1 | 
                                                                        
                                        | Voltage - Supply (Vcc/Vdd) | 10V ~ 30V | 
                                                                        
                                        | Frequency - Switching | Up to 500kHz | 
                                                                        
                                        | Duty Cycle (Max) | 96% | 
                                                                        
                                        | Synchronous Rectifier | No | 
                                                                        
                                        | Clock Sync | No | 
                                                                        
                                        | Serial Interfaces | - | 
                                                                        
                                        | Control Features | Frequency Control | 
                                                                        
                                        | Operating Temperature | -55°C ~ 125°C (TA) | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | 20-LCC (J-Lead) | 
                                                                        
                                        | Supplier Device Package | 20-PLCC (9x9) | 
                                                                        
                                        | Base Product Number | UC1842 | 
                                                                        
                                        | RoHS Status | RoHS non-compliant | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                        
                                        | REACH Status | Vendor Undefined | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 8542.39.0001 | 
                                                                        
                                        | Standard Package | 1 | 
                                                                                                        
                            
                         
                                                Boost, Buck, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 20-PLCC (9x9)