The MCP1640/B/C/D is a high-efficiency, fixed frequency, synchronous step-up DC-DC converter with features such as up to 96% typical efficiency, low start-up voltage, adjustable output voltage range, automatic PFM/PWM operation, low device quiescent current, inrush current limiting, and overtemperature protection.
It is designed for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion, or Li-Polymer batteries.
The device offers options for true load disconnect or input/output bypass while shut down, and consumes less than 1 µA of input current in these states.
It is available in 6-lead SOT23 and 2x3 DFN packages.
The electrical characteristics and typical performance curves are also provided in the document.