MAX777 Datasheet(PDF) - Maxim Integrated Products

X   Low-Voltage-Input, 3V/3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters Applications   Single Battery-Cell (1V), Step-Up Voltage Conversion   Efficient, High-Power Step-Up Regulation from Low Input Voltage   Pagers   Portable Instruments & Handy-Terminals   Laptop and Palmtop Computers