Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
What do you mean with a simple logic?
It depends on the load requirements, if these are known and constant you may be able to do it with a resistor like when using a led.
If you have a high impedance load then you can use a voltage divider etc.
What kind of load do you have?
Yes, i need to drive a controller IC. I think, zener diode is the only way to reduce DC voltage. Voltage divider could not be used since it need to drive a controller.
Otherwise we have to improve the regulator. If other than any idea is there, plz share it!
You still haven't specified your load.
Unless you provide some specific model so we check the datasheet I don't think it is possible to give solution.
What kind of controller is that and why do you say "Otherwise we have to improve the regulator", if there is already a regulator and which model?
Is it a 3.3v regulator that outputs 3.4 instead, can it be replaced?
Why do you want to change the output instead of replacing the regulator?