| PartNumber | L4971 | L4971D | L4971D013TR |
| Description | Switching Voltage Regulators 3.3 to 50V Step-Down | Switching Voltage Regulators 3.3 to 50V Step-Down | Switching Voltage Regulators 3.3 to 50V Step-Down |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Package / Case | PDIP-8 | SOIC-16 | SO-16 |
| Output Voltage | 3.3 V to 50 V | 50 V | 50 V |
| Output Current | 1.5 A | 1.5 A | 1.5 A |
| Input Voltage MAX | 55 V | 55 V | 55 V |
| Topology | Buck | Buck | Buck |
| Switching Frequency | 300 kHz | 90 kHz to 110 kHz | 300 kHz |
| Series | L4971 | L4971 | L4971 |
| Packaging | Tube | Tube | Reel |
| Type | Step-Down | Step-Down | Charge Pump |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 2000 | 1225 | 1000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.032805 oz | 0.007079 oz | 0.105822 oz |
| Number of Outputs | - | 1 Output | 1 Output |
| Moisture Sensitive | - | Yes | Yes |
| Input Voltage MIN | - | - | 8 V |
| Minimum Operating Temperature | - | - | - 40 C |
| Maximum Operating Temperature | - | - | + 150 C |
| Height | - | - | 2.65 mm |
| Input Voltage | - | - | 8 V to 55 V |
| Length | - | - | 10.5 mm |
| Operating Temperature Range | - | - | - 40 C to + 150 C |
| Width | - | - | 7.6 mm |
| Shutdown | - | - | Shutdown |
| Operating Supply Current | - | - | 4 mA |
| Pd Power Dissipation | - | - | 800 mW |
| Supply Voltage Min | - | - | 8 V |