can you suggest a circuit component that can genenrate 12v and -12v?

[njxia]

I need both 12v and -12v in my system. Could any one suggest one circuit component (i.e.. DC-DC converter) that I can use to generate these two voltages? Thanks for your help in advance.

 

[enjunear]

The part depends greatly on several factors that we are missing.
1. How much current will be pulled from the +12 and -12V (each, and in total)
2. How much regulation do you require? (wide current range, fast turn-on/turn-off transient loads, etc)

TI, Linear and Analog Devices are places that I'd start with for COTS buck/boost converters. You can find some single-pacakge TO- sized devices that might work.

 

[svhb]

And do you need isolated outputs from the input voltage?

 

[njxia]

The current is not very strict, it is roughly 300 mA. The 12v and -12v will be used for a differential OpAmp, so the switching speed is not an issue, I guess.
Could you suggest one device for reference? I could not find one from TI, Linear and Analog Devices.

Thanks.

---------- Post added at 05:48 ---------- Previous post was at 05:46 ----------

And do you need isolated outputs from the input voltage?

No. They are not isolated.

 

[enjunear]

I was thinking charge-pump regulators, but for that much current, you'd better go for a switcher. NI makes a line called SWITCHERS MADE SIMPLE. I'd take a look at the LM2585. See page 14, Figure 10 as a jumping off point.

**broken link removed**

 

[njxia]

I was thinking charge-pump regulators, but for that much current, you'd better go for a switcher. NI makes a line called SWITCHERS MADE SIMPLE. I'd take a look at the LM2585. See page 14, Figure 10 as a jumping off point.

**broken link removed**

Thank you. I will give it a try.