POWER GATING CIRCUIT AND METHOD OF OPERATING IT

摘要

PROBLEM TO BE SOLVED: To minimize a leakage current and power losse resulting from the leakage current. SOLUTION: A power gating circuit contains a MOS circuit having first and second power supply terminals for a memory circuit etc., a P-channel transistor 12 having a drain coupled with the first power supply terminal of the MOS circuit, and an N-channel transistor 16 having a drain coupled with the second power supply terminal of the MOS circuit. Negative VGSvoltages are set in the transistors 12 and 16 in a standby mode and boosted VGSvoltages are set in the transistors 12 and 16 in an active mode. COPYRIGHT: (C)2004,JPO&NCIPI