Hello,
This is my first topic.Very glad that I could gain help from all of you.
Input is 4.2V lithium batteries, need 3.3v output power to the CPU, so it is necessary to support low-power lithium battery and input. 1117 itself is relatively large power consumption, TLV70033 specified minimum output current is 200ma, lithium batteries do not operate reliably input, Is there other chip can be useful?
Regards,
Maydori