Microchip AA Batteries to USB Boost Regulator for MCP1642B

The Microchip MCP1642B Battery to USB Power Evaluation board is a platform to demonstrate the capabilities of the MCP1642B Switching Boost Regulator in a battery to USB application. Power is supplied by two AA batteries or can be sourced from an external supply; the output voltage is 5V as per the fixed value of the MCP1642B-50 device used.

Can be powered by two AA batteries or an external power supply
Input voltage range (V_IN) 1.8V to 5.5V
Minimum start-up voltage 1.8V at V_OUT = 5.0V and I_OUT = 1 mA, resistive load
Output voltage: 5.0V
Output current: typical 700 mA @ 5V output, 2.8V input
PWM operation
PWM switching frequency: 1 MHz
Power Good indicator 2 mA LED
Enable state selectable using EN switch
Peak input current limit of 1.8A
Over-temperature protection
USB A output connector

MCP1642B AA Batteries to USB Power Evaluation Board
USB cable