OK, the idea just popped into my head of making a really simple DC-DC converter to run small battery-operated projects using op amps and such from a small power source. Say 2 AA cells. (The idea is to avoid using 2 fairly bulky 9-volt batteries.) So I'm looking for something like this:
**broken link removed**
Looking through the DigiKey catalog*, I see Murata makes some DC-DC "power modules", like this one that converts 5V--> +-15V @ 33mA for only about eight bucks (100mA will cost a little more); I suppose one could use 4 AAs for a 6-volt supply (you don't think that extra ~1V would hurt this guy, do you?).
Any ideas? I'd like something that's easy to build and would fit on a little scrap of perfboard, say about an inch square. Oh, and it could be unregulated (could use 78xx if needed downstream).
**broken link removed**
Looking through the DigiKey catalog*, I see Murata makes some DC-DC "power modules", like this one that converts 5V--> +-15V @ 33mA for only about eight bucks (100mA will cost a little more); I suppose one could use 4 AAs for a 6-volt supply (you don't think that extra ~1V would hurt this guy, do you?).
Any ideas? I'd like something that's easy to build and would fit on a little scrap of perfboard, say about an inch square. Oh, and it could be unregulated (could use 78xx if needed downstream).