MCP1640RD-4ABC: 3.3V @ >130mA, 1.5V Batt

* Output current is dependent on input voltage.

The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design is designed to demonstrate the MCP1640 features in a microcontroller application that optimizes the battery lifetime. The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design was developed to help engineers reduce product design cycle time.

At 1.5V input and 3.3V output, the board is capable of 130 mA load current.

The MCP1640 device has been developed to increase battery life. The MCP1640 is capable of regulating the output voltage over a wide range (2.0V to 5.5V), and typically delivers over 100 mA load current at 3.3V output, when supplied from a single 1.5V cell.

The key features of the MCP1640 that help optimize the battery life include:

• PFM switching mode for light loads
  

• Low input start-up voltage, typically 0.65V at 1 mA load current
  

• Low shutdown voltage (continuously operating down to 0.35V input under light load condition)
  

• True Output Disconnect Shutdown option, preventing leakage current from input to output (less than 1 µA is consumed from the battery in this mode)
  

• 19 µA typically quiescent current