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Ai-Thinker-Open / GPRS_C_SDK

Ai-Thinker A9/A9G GPRS (with GPS(A9G)) module C development SDK
https://ai-thinker-open.github.io/GPRS_C_SDK_DOC
MIT License
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port V_IO in A9G #445

Open shmusb1999 opened 4 years ago

shmusb1999 commented 4 years ago

Can we use port V_IO in A9G as a 5v/3v DC/DC regulator ?

how much ripple does it have and how is the limitation of current ?

best regards

ZakKemble commented 4 years ago

Yes, the datasheet does say that you can use it to power other 3V stuff and that the maximum current draw is 10mA. It doesn't give any ripple specs (or any other specs like accuracy), but I'm pretty sure it's a linear regulator rather than switching.