Newbie: Help me 3-5 v step-up

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hello!

i have different projects going on, , on 1 have microchip , ultrasonic range detector. chip takes 3v , sensor 5. want power entire circuit 3v lipo ion battery. small , powerfull.

so how can step 3v 5v sensor?
thanks tyler!

you buy 'boost' (aka step-up) converter. or.... go other way, , have 5 v main supply , use 'buck' (aka step-down) converter.

just make sure converter able supply amount of power need supply.


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