XC9504B092DR-G

The XC9504B092AR is a PWM control, PWM/PFM switching, 2 channel (step-up and inverting) DC/DC controller IC. With 0.9V of standard voltage supply internal, and using externally connected components, the output 1 voltage (step-up DC/DC controller) can be set freely within a range of 1.5V ~30V. Since output 2 (inverting DC/DC controller) has a built-in 0.9V reference voltage (accuracy 卤2%), a negative voltage can be set with the external components. With a 180kHz frequency, the size of the external components can be reduced. The control of the XC9504B092AR can be switched between PWM control and PWM/PFM automatic switching control using external signals. Control switches from PWM to PFM during light loads when automatic switching is selected and the XC9504B092AR is highly efficient from light loads through to large output currents. Noise is easily reduced with PWM control since the frequency is fixed. The XC9504B092AR gives freedom of control selection so that control suited to the application can be selected. Soft-start time is internally set to 10msec (output 1) which offers protection against rush currents and voltage overshoot when the power is switched on.