I need to use the typical design offered in the datasheet of the G5177c Designing Step Up Converter for a mini battery-powered project.
I bought a PCB with the circuit already built, but I would like to know how to modify the maximum output current. I think that depends on the setting on pin ILM01 as it says in the datasheet G5177c "Output Current Limit Setting"
I took some pictures to the PCB to ask the following:
1) Explain how to correctly select the resistance value 0 ~ 5 ohm, what is its function? (red pseudo-circle)
2) Why they used on this PCB an extra resistance between the VBAT and ILM01 pins (also in red pseudo-circle)
3) The LED and its resistance here are load indicator, how would its connection be, you can draw the schematic. I can't reverse engineer the PCB.