| PartNumber | L4973V5.1 | L4973V3.3 |
| Description | Switching Voltage Regulators 5.1V 3.5A Step-Down | Switching Voltage Regulators 3.3V 3.5A Step-Down |
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y |
| Mounting Style | Through Hole | Through Hole |
| Package / Case | PDIP-18 | PDIP-18 |
| Output Voltage | 5.1 V | 3.36 V |
| Output Current | 3.5 A | 3.5 A |
| Number of Outputs | 1 Output | 1 Output |
| Input Voltage MAX | 55 V | 55 V |
| Topology | Buck | Buck |
| Input Voltage MIN | 8 V | 8 V |
| Switching Frequency | 100 kHz | 100 kHz |
| Series | L4973 | L4973 |
| Packaging | Tube | Tube |
| Input Voltage | 8 V to 55 V | 8 V to 55 V |
| Product | Switching Regulators | - |
| Type | Step-Down | Step-Down |
| Brand | STMicroelectronics | STMicroelectronics |
| Load Regulation | 6 mV | - |
| Operating Supply Current | 4 mA | - |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 1000 | 1000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.044801 oz | 0.044801 oz |
| Supply Voltage Min | - | 8 V |