针对传统电荷泵的阈值损耗与体效应问题,提出了一种采用两相非交叠时钟的高增益交叉耦合电荷泵。该电荷泵不受阈值压降、体效应等因素影响,开关管导通电阻较小,因而具有较高的电压增益与效率。电路采用SMIC 0.18μm CMOS工艺设计与仿真,结果表明,该电路的最低工作电压为0.9V,可驱动120μA的负载电流,电压增益高达4.8,最大电源效率达到70.18%。 Aiming at the problem of threshold loss and body effect of traditional charge pump, a high gain cross-coupled charge pump with two-phase non-overlapping clock is proposed. The charge pump is not affected by the threshold voltage drop, the body effect and other factors, the on-resistance of the switch is smaller, which has higher voltage gain and efficiency. The circuit is designed and simulated with SMIC 0.18μm CMOS technology. The results show that the minimum operating voltage of this circuit is 0.9V, which can drive a load current of 120μA with a voltage gain of 4.8 and a maximum power efficiency of 70.18%.