Hi everyone. Can you help me with this circuit I am working on, please?. (Image 1)
It consists of a TP4056 charger/controller connected to a 3.7v/1.4Ah Li-Ion battery to supply a low battery indicator and a load (3 leds + 2 fans) through a MT3608 Step Up to raise voltage from 3.7v to 9v. When the TP4056 is charging the battery through the USB port, the load is disconnected by the P-Mosfet.
PROBLEM: Voltage drops significantly when the load is connected.
Test1: Circuit without Debouncing/Load connected:
Voltage drops from 3.68v to 3.46v (image 2).
Low Battery Indicator: Blink