Editor’s note: Here is a third Design Challenge from one of our readers. Please feel free to make suggestions and comments/questions, and the author will respond. Maybe we can even improve upon the design.
Opportunity for improving this design: We have an analog power supply circuit for one of our products that employs an obsolete LAS6350 regulator, and we need to update this. The circuit was originally designed to accept either an AC or DC input, but we now use only 24V DC.
We would appreciate your recommendation on our best design configuration and regulator for replacement. Our Vin is 24V DC with Vo at 2.55V DC. Current is less than 1A.
Below is a schematic and data sheet of the old Lambda regulator:
Our circuits for this system are all analog, which I would like to maintain as I feel we obtain the best precision of measurement as well as durability in harsh environments
Your suggestions and recommendations will be greatly appreciated.