Mixed type frequency compensating circuit and control circuit

摘要

A mixed type frequency compensating circuit is disclosed. The mixed type frequency compensating circuit includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode. The proportional component sub-circuit amplifies the input voltage signal in a current mode. Accordingly, the mixed type frequency compensating circuit may occupy a small area in a semiconductor integrated circuit.