| Parameters | 
                                    
                                                                                                                        
                                                | Package / Case | 
                                                20-SOIC (0.433", 11.00mm Width) Exposed Pad | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                PowerSO-20 | 
                                            
                                                                                    
                                                | Base Product Number | 
                                                L4938 | 
                                            
                                                                                    
                                                | RoHS Status | 
                                                ROHS3 Compliant | 
                                            
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 
                                                3  (168 Hours) | 
                                            
                                                                                    
                                                | REACH Status | 
                                                REACH Unaffected | 
                                            
                                                                                    
                                                | ECCN | 
                                                EAR99 | 
                                            
                                                                                    
                                                | HTSUS | 
                                                8542.39.0001 | 
                                            
                                                                                    
                                                | Standard Package | 
                                                600 | 
                                            
                                                                                    
                                                | Mfr | 
                                                STMicroelectronics | 
                                            
                                                                                    
                                                | Series | 
                                                - | 
                                            
                                                                                    
                                                | Package | 
                                                Tape & Reel (TR) | 
                                            
                                                                                    
                                                | Product Status | 
                                                Active | 
                                            
                                                                                    
                                                | Output Configuration | 
                                                Positive | 
                                            
                                                                                    
                                                | Output Type | 
                                                Adjustable (Fixed) | 
                                            
                                                                                    
                                                | Number of Regulators | 
                                                2 | 
                                            
                                                                                    
                                                | Voltage - Input (Max) | 
                                                28V | 
                                            
                                                                                    
                                                | Voltage - Output (Min/Fixed) | 
                                                4.9V (5V) | 
                                            
                                                                                    
                                                | Voltage - Output (Max) | 
                                                5.1V | 
                                            
                                                                                    
                                                | Voltage Dropout (Max) | 
                                                0.4V @ 100mA, 0.6V @ 400mA | 
                                            
                                                                                    
                                                | Current - Output | 
                                                100mA, 400mA | 
                                            
                                                                                    
                                                | PSRR | 
                                                - | 
                                            
                                                                                    
                                                | Control Features | 
                                                Enable, Reset | 
                                            
                                                                                    
                                                | Protection Features | 
                                                Over Temperature | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -40°C ~ 150°C | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                                                
                                
                             
                                                Linear Voltage Regulator IC Positive Adjustable (Fixed) 2 Output 100mA, 400mA PowerSO-20