Idea for EM-406 and 3.3v

GPS/GNSS Development Boards
1

Hi

Forgive for my English.

In my project I connect GPS EM-406, mC AVR (M16) and radio modul RC1240.

I would like Use Li battery as power supply via 3.3 LDO regulator, but voltage for EM-406 is 4.5-6.5 V.

On the back side of board EM-406 is built in voltage regulator (3.3V).

If I bypass this regulator, I can connect EM-406 to external

3.3v regulator.

That you think of my idea?

2

You could use a suitable boost converter to get 5V from the battery, Maxim makes them.

Leon

3

For what it’s worth, I haven’t had any problems powering mine directly from 3.3v.