Power I2S audio breakout (MAX98357A) directly from LiPo

Sensors Sound & Audio
1

Hi everyone,

is it possible and advisible to power the I2S audio breakout board, i.e. the MAX98357A driver, directly from a LiPo battery?

Or should I add a LDO?

https://www.sparkfun.com/products/14809

Thanks and best regards

Felix

2

Hi Felix.

As long as your battery never exceeds 5.5 volts, and you’re ok with the board possibly acting strangely when the battery discharges below 2.5 volts, a direct connection to a single cell lipo would be OK.

If you want stable operation with a varying voltage, something like our [Buck-Boost Converter will give a steady 3.3 or 5 volts to the board and that would be a better choice than a LDO voltage regulator.](https://www.sparkfun.com/products/15208)