Looking for keypad encoder that takes less than 5V

[osha]

keypad encoder

i have only in my circuit 3.3v output and i want to drive keypad encoder i cant find keypad encoder take less than 5v,there for any one can help me to find (keypad encoder take 3.3v)
thanks for any help

 

[thuvu]

keypad encoder

Why you don't use a simple converter 3.3 to 5V?

 

[osha]

Re: keypad encoder

what this converter?PLEASE REPLY ME IN DETAIL,


THANK YOU FOR YOUR HELP:|

 

[thuvu]

Re: keypad encoder

I believe there are some ic's for converting a voltage level (ex 3.3 V ) to anothe (5V).

you can search on google for them.

Added after 2 minutes:

What you want to make excactly?

Do you use a microcontroller?

Added after 4 minutes:

The following circuit is quite simple.

But be cereful :
When Vin=0V -> Vout=5V
When Vin=3.3V -> Vout=0V (0.2V)

You can also use a fet instead

 

[osha]

Re: keypad encoder

i search but i can't found please if u can find it for me(it is will good help)
thank you

Added after 52 minutes:

sorry but i have only battry give only 3.3v there is no any source for 5v,so your ciricute need 5v.it's not solution,there are another solution.