Samsung Electronics Co., Ltd.

Dong-jin Keum

Je-Hyung Yoon

Sun-Kyu Lee

Nguyen Huyhieu

Hee-seok Han

A multi-phase switching regulator and a switching regulating method using the multi-phase switching regulator employ an interleaving circuit. The multi-phase switching regulator includes: a first regulating circuit configured to receive an input voltage and generate a first sub-output voltage with a first phase by transforming the input voltage in response to a first set signal; a second regulating circuit configured to receive the input voltage and generate a second sub-output voltage with a second phase by transforming the input voltage in response to a second set signal; and the interleaving circuit configured to repeatedly and sequentially generate the first set signal and the second set signal by comparing a reference voltage with an output voltage generated based on the first sub-output voltage and the second sub-output voltage.

Multi-phase switching regulator including interleaving circuit and switching regulating method using the same

An auto fusing circuit for automatically performing fusing operations by application of one time fuse enable signal is described. The auto fusing circuit includes a primary fuse block for receiving a fuse enable signal as an enable signal, and performing a fusing operation, and a plurality of secondary fuse blocks connected to an output terminal of the primary fuse block in series for respectively receiving an out signal of the previous fuse block as an enable signal, and sequentially performing fusing operations. The primary fuse block and the secondary fuse blocks are activated by an enable of each of select signals, or deactivated by a disable of each of the select signals. According to the auto fusing circuit, the fusing operations are sequentially performed with a single application of fuse enable signal, and a test time can be reduced.

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Suwon, South Korea

Dong-jin Keum