Not sure how to find VCC/2 supply chips

Hi Lloyd,

I used TI's LDO power product search tool to narrow out LDO's with 2 or more regulated outputs.
It gave me 43 matching results, please see the link below.

http://www.ti.com/power-management/linear-regulators-ldo/products.html#p32=2;3

You might be thinking of the TPS70175.
http://www.ti.com/product/TPS70175-Q1

Let me know if I can help any further.

Thanks,

- Stephen

Stephen,

Thanks for the suggestion, but that's not what I'm looking for.

I'm looking for a regulator that puts out half of whatever is put into it. They used to be around for pretending that a single supply (like 12v) was a dual supply (+/-6v) by providing a midpoint of the input voltage that tracked changes. My supply voltage will change a lot as a battery discharges, but I still need a nicely regulated midpoint voltage that can put out a small amount of current (like 10mA or so).

Lloyd

Hi Lloyd,

Can you provide any information on how you'll be using the supply voltage? This might help us find the device you are looking for.

The only device I know of that outputs a supply and 1/2 of the supply is the REF2025, REF2030, REF2033, and REF2041. I don't think this is exactly what you are looking for but they might work for your application.

Thank you,

Tim Claycomb

Ronald,

Thanks! The 2425 is a fixed output, but the 2426 is exactly what I'm looking for, it puts out half the supply whatever that might be. I couldn't remember the term "Virtual Ground".

Tim, thanks for the suggestion but those are fixed values, I needed a tracking output.

Thanks to both of you for your help,

Lloyd