MCP1640EV-SBC(2): Boost 3.3V or 5V, 0.35 ~ 5.5Vin

* Output current is dependent on input voltage.

The MCP1640 is a compact, high-efficiency, fixed frequency, synchronous step-up dc-dc converter. It provides an easy-to-use power supply solution for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries in addition to distributed 3.3V to 5.0V applications.

The MCP1640 is capable of regulating the output voltage over a wide 2.0V to 5.5V range and typically can deliver over 100 mA of load current at 3.3V output when supplied from a single 1.2V cell. The input voltage range is 0.35V to 5.5V with a low 0.65V start-up voltage. The regulated output voltage, Vout should be greater than or equal to the input voltage, Vin.

The MCP1640 Evaluation Board offers both package types in two boost-converter applications for 2.0V, 3.3V and 5.0V output voltage options that can be selected using a mini dip switch. The enable input is controlled in both boost converter applications using a mini dip switch.