Description

This reference design details a power management circuit which is capable of supplying all rails of a CMOS camera supply.  All rails: even highly sensitive analog rails of the image sensor: can be supplied directly without the need of additional filters. This way the power management solution can acheive highest efficency. The implementation is based on 3 completely integrated step down converter circuits enabling a small total solution while still capable of handling up to 200 mA at each of the outputs.