Hi,
I am charging my batteries from the solar panel, Battery 3x2500mA = 7500mA. (3.7V 18650 Batteries)
My system can draw 5V 1-1.5A and Also operating current is 5V, 300-400mA. So i put a TPS61230ARNSR booster to 5V after batteries.
I made the design by following the design steps, the board is in my hand now, but there is a problem I can not solve.
0.7mA when the load is not connected.
I used the smartphone as a load and saw that I draw a current of 151mA. My phone didn't charge when I took 151mA.
Now I have 2 questions (I can see my output voltage is constant 5V):
1. Why can't I pull 2-2.5A when the load is connected.
2. Why can't the phone charge when you can pull 151mA while the load is connected.
if you want schematic or layout I can throw them too.
Regards,
Mehmet