| PartNumber | MCP1257-E/UN | MCP1257-E/MF | MCP1257T-E/MF |
| Description | Switching Voltage Regulators Frac Charge Pump w/ LBO and Sleep | Switching Voltage Regulators Frac Charge Pump w/ LBO and Sleep | Switching Voltage Regulators Frac Charge Pump w/ LBO and Sleep |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MSOP-10 | DFN-EP-10 | DFN-EP-10 |
| Output Voltage | 3.3 V | 3.3 V | 3.3 V |
| Output Current | 100 mA | 100 mA | 100 mA |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Input Voltage MAX | 3.6 V | 3.6 V | 3.6 V |
| Topology | Buck | - | Buck |
| Input Voltage MIN | 1.8 V | 1.8 V | 1.8 V |
| Switching Frequency | 650 kHz | 650 kHz | 650 kHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | MCP1257 | MCP1257 | MCP1257 |
| Packaging | Tube | Tube | Reel |
| Height | 0.85 mm | 0.95 mm | 0.95 mm |
| Input Voltage | 3.6 V | 3.6 V | 3.6 V |
| Length | 3 mm | 3 mm | 3 mm |
| Type | Step-Down Converter | Charge Pump | Step-Down Converter |
| Width | 3 mm | 3 mm | 3 mm |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 100 | 120 | 3300 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.005051 oz | 0.007055 oz | - |