Patent ID: 11888399
Assignee: ROHM CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A power management integrated circuit (IC) comprising:
a first feedback pin;
a second feedback pin;
a first circuit block comprising a first feedback controller and a first pre-driver; and
a second circuit block comprising a second feedback controller and a second pre-driver,
wherein the power management IC is integrated on a semiconductor substrate, wherein, the first feedback controller is structure to generate a first control signal which is a pulse signal of which duty cycle is adjusted such that a signal at the first feedback pin approaches to a first reference voltage in a first mode and a second mode, and to supply a third control signal according to the first signal to the second pre-driver in the second mode, and wherein
the first pre-driver is structured to operate according to the first control signal in the first mode and the second mode, and wherein
the second feedback controller is structured to generate a second control signal which is a pulse signal of which duty cycle is adjusted such that a signal at the second feedback pin approaches to a second reference voltage in the first mode, and wherein
the second pre-driver is structured to operate according to the second control signal in the first mode and to operate according to the third control signal received from the first circuit block in the second mode.