DCS-Control™ means Direct Control with Seamless transition into power-save mode. It's another type of constant on-time control. This topology incorporates the advantages of the voltage-mode, current-mode, and hysteretic control topologies while providing a clean entry into power-save mode.

The DCS-Control topology fundamentally is a hysteretic topology. It uses FB pin for the comparison with internal reference voltage and provides precise output-voltage regulation. In the meanwhile, it has VOS pin, which is connected directly to the output voltage, to provide the fast hysteretic response. Like D-CAP™ control, an internal on-time timer is included to set a relatively fixed frequency. See High-efficiency, low-ripple DCS-Control™ offers seamless PWM/power-save transitions analog design journal for detailed description of DCS control mode.