DocID023264 Rev 2

9/17

AN4123

Reference design description

Figure 15 shows the maximum available output current versus the input current when PV

module with 2, 3 or 4 cells in series is used.

Obviously, in case of low irradiation or lower maximum power extractable from the panel, the

maximum output current drawn by the load must be properly reduced in order to avoid any

undesired output voltage drop.

Figure 16 to Figure 18 show the same data but highlighting

the maximum output current versus the input power provided by the PV panel.