首页> 外国专利> LOW-POWER LOW-DROPOUT VOLTAGE REGULATORS WITH HIGH POWER SUPPLY REJECTION AND FAST SETTLING PERFORMANCE

LOW-POWER LOW-DROPOUT VOLTAGE REGULATORS WITH HIGH POWER SUPPLY REJECTION AND FAST SETTLING PERFORMANCE

机译:具有高电源抑制和快速稳定性能的低功耗低压差稳压器

摘要

A low-power low-dropout (LDO) voltage regulator device includes an error amplifier, a level-shifter circuit, and an NMOS pass transistor. The error amplifier compares a sampled portion of a regulated output voltage of the LDO voltage regulator with a reference voltage and generates an error signal. The level-shifter circuit is coupled to the error amplifier. The NMOS pass transistor provides the regulated output voltage with low dropout operation. The level-shifter circuit can shift a voltage level of the error signal to facilitate the low dropout operation of the NMOS pass transistor.
机译:低功率低压差(LDO)稳压器设备包括误差放大器,电平转换器电路和NMOS传输晶体管。误差放大器将LDO稳压器的稳定输出电压的采样部分与参考电压进行比较,并生成误差信号。电平移位器电路耦合到误差放大器。 NMOS传输晶体管以低压差操作提供稳定的输出电压。电平移位器电路可以移位误差信号的电压电平,以促进NMOS传输晶体管的低压差操作。

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