AL8862QApplication Information (continued) Inductor Selection Recommended inductor value for the AL8862Q is in the range of 33μH to 100μH. Higher inductance is recommended at higher supply voltages in order to minimize output current tolerance due to switching delays, which will result in increased ripple and lower efficiency. Higher inductance also results in a better line regulation. The inductor should be mounted as close to the device as possible with low resistance connections to SW pins. The chosen coil should have saturation current higher than the peak output current and a continuous current rating above the required mean output current. The inductor value should be chosen to maintain operating duty cycle and switch ‘on’/’off’ times within the specified limits over the supply voltage and load current range. The following equations can be used as a guide. SW Pins Switch ‘On’ Time 𝑳∆𝑰 𝒕𝑶𝑵 = 𝑽𝑰𝑵 − 𝑽𝑳𝑬𝑫 − 𝑰𝑳𝑬𝑫(𝑹𝑺𝑬𝑻 + 𝑹𝑳 + 𝑹𝒔𝒘)