Hello! I am wondering about voltage-current plot in the datasheet of LNK562-564, Figure 1. See attached picture. The datasheet is here:
I don't fully understand the text,
"When the FB pin voltage falls below 1.69 V, the oscillator frequency linearly reduces to typically 48% at the auto-restart threshold voltage of 0.8 V. This function limits
the power supply output current at output voltages below the rated voltage regulation threshold VR (see Figure 1)." What do the three lines in the figure mean? What is the "Rated Power" and I_R & V_R?
Could you explain more in detail? Thank you very much!