how to boost 3V DC to 6V DC?

[hemnath]

I have to boost the voltage from 3V to 6V and looked into boost converters ic such as maxim, Linear technology, Analog devices,etc... But it needs an extra device to my circuit and cost more.
So I'm designing using simple joule thief. Is it possible to boost the voltage 3V to 6V using joule thief? else, is there any possible solutions to boost?

Thanks in advance

 

[seshu093]

https://en.wikipedia.org/wiki/Boost_converter

u can use a boost convertor

 

[srjth.m1]

you can use converter IC for this like TPS54310
https://www.ti.com/lit/ds/symlink/tps54310.pdf

 

[tpetar]

Use MC34063 IC.