Voltage Divider Question

[aberco]

What about a switching regulator? they are usually quite efficient and don't require an heatsink. 250mA is not much, and I'm sure that even an LDO (low dropout regulator) could perform well. 7812 has a large voltage drop and tends to heat.

You can look at the catalog from TI, Maxim, ST and others, they most certainly have the device that suits your need (i.e. TL750M12 from TI in TO220 package)

[Ioannis]

Or from RECOM. Just like a 78xx regulator, only switching. No heat sinking required.

Ioannis

[malc-c]

Thanks guys - I'll pass on the suggestions. Can you provide a part number or link for the RECOM switching regulator - Cheers

[Ioannis]

Sure, here it is for 1A. There are others for .5 or 1.5A

http://www.recom-international.com/?...user_recom_pi2[series]=R-78Bxx-1.0(L)

Ioannis

[malc-c]

Thanks - I'll pass on the info