Conventionally, such a PMIC has been designed to be optimized for each platform. This leads to a situation in which a PMIC optimized for a particular platform cannot be employed for a different platform. Accordingly, in a case in which the expected shipment volume of a given platform is small, it is difficult to design a dedicated PMIC from the viewpoint of design cost recovery. In some cases, there has been no option but to abandon the employment of such a PMIC.
The disclosure invention has been made in view of such a situation.
An embodiment of the present invention relates to a power management circuit. The power management circuit includes: a first feedback pin; a second feedback pin; a first circuit block including a first feedback controller and a first pre-driver; and a second circuit block including a second feedback controller and a second pre-driver. In a first mode, the first feedback controller generates a first control signal based on a signal at the first feedback pin. The first pre-driver operates according to the first control signal, the second feedback controller generates a second control signal based on a signal at the second feedback pin, and the second pre-driver operates according to the second control signal. In a second mode, the first feedback controller generates the first control signal based on a signal at the first feedback pin, the first pre-driver operates according to the first control signal, and the second pre-driver operates according to a third control signal received from the first circuit block.