| Parameters | 
                                                                                                                        
                                                | 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 | 
                                                                                    
                                                | Package / Case | 20-SOIC (0.295", 7.50mm Width) | 
                                                                                    
                                                | Supplier Device Package | 20-SO | 
                                                                                    
                                                | 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 | 1,000 | 
                                                                                                                
                                
                             
                                                Linear Voltage Regulator IC Positive Adjustable (Fixed) 2 Output 100mA, 400mA 20-SO