In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote:

I have used a 7806 6V regulator on the SX28DP and it seems to survive quite well.

I have also used 4 AA batteries directly on a SX20SS without any regulator and it also survives well.

Of course it is not advisable but sometimes you need to do it.

For example, by not using a regulator, the SX20 can go into sleep mode and drain only a few microamps.
If a regulator is installed, more than a thousand microamps would be drained for nothing.


Another reason to use 6v directly on the SX is when I need to drive a Mosfet's gate like the IRF530 which needs 6V, without the cost of a mosfet driver.

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