| PartNumber | MC34166D2TG | MC34166D2T | MC34166D2TR4 |
| Description | Switching Voltage Regulators 40V 3A Buck/Boost/Inverting | Switching Voltage Regulators 40V 3A | Switching Voltage Regulators 40V 3A |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | N | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TO-263-5 | TO-263-5 | TO-263-5 |
| Output Voltage | 5.05 V | - | - |
| Output Current | 3 A | - | - |
| Input Voltage MAX | 40 V | - | - |
| Topology | Buck, Boost, Inverting | Buck | Buck |
| Switching Frequency | 72 kHz | - | - |
| Packaging | Tube | Tube | Reel |
| Type | Step-Down Converter | Step-Down Converter | Step-Down Converter |
| Brand | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 50 | 50 | 800 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.056438 oz | 0.056438 oz | 0.056438 oz |