single-cell voltage booster to 3.3 Volts.

Booster, with US nickel coin.

This device is a Texas Instruments TPS60310 switched-capacitor voltage booster, with the recommended circuitry, built on a single PC. The chip is rated to deliver 3.3 volts at 20ma max, from a 0.9 to 1.8 volt input supply. I have used this device to power a TI MSP430 test board from a single AA NiMH cell, but it should work with other 3.3 volt processsors as well.

Board Connections

Pin	Function
1	Output 1 (2x input, unregulated)
2	Snooze (input, Tie to battery input for normal operation.)
3	Battery input positive
4	Common
5	Regulated 3.3 volt output.
6	Power-Good output. (open-drain with 100k pullup).

Output pads are on 0.1 inch centers. I typically solder wires into the holes, so the unit can be plugged vertically into an inline socket or into a solderless breadboard. Another option is to solder an inline socket onto this board, so it can be plugged onto a pin header on the cpu board.

I designed this board primarily for my own testing and prototyping, but have limited quantites available for sale. Price is $12 each plus $5 shipping and handling. Contact me ( at info2003@sensicomm.com) for current avaliability and payment info. These boards are hand-assembled under static-protected conditions but without the precise process control of automated assembly. So if you are concerned about reliability or environmental conditions, this may not be an appropriate product.