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| PartNumber | MCP1640-I/MC | MCP1640B-I/MC | MCP1640B-I/CHY |
| Description | Switching Voltage Regulators 500 kHz 300 mA Syn. PWM/PFM enabled | Switching Voltage Regulators 500 kHz 300 mA Syn Boost Converter | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | DFN-8 | DFN-8 | - |
| Output Voltage | 2 V to 5.5 V | 2 V to 5.5 V | - |
| Output Current | 350 mA | 350 mA | - |
| Number of Outputs | 1 Output | 1 Output | - |
| Input Voltage MAX | 5.5 V | 5.5 V | - |
| Topology | Boost | Boost | - |
| Input Voltage MIN | 0.35 V | 0.35 V | - |
| Switching Frequency | 500 kHz | 500 kHz | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | Tube | - |
| Type | Voltage Converter | Switching Regulator | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Load Regulation | 0.01 % | 0.01 % | - |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | - |
| Factory Pack Quantity | 150 | 150 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Unit Weight | 0.001319 oz | 0.001319 oz | - |