In this study, a low-dropout voltage regulator (LDO) system composed of two LDOs, which can operate in the temperature range of 77–400 K, has been developed. Cryogenic and typical transistor models of the 180 nm UMC CMOS process have been employed in the design process. Both LDOs can provide a load current of 100 mA while generating four different output voltage levels (0.9 V, 1.2 V, 1.5 V, 1.8 V). The LDO system provides 70 mV, 60 mV, 60 mV, and 50 mV dropout voltages at 77 K, and 111 mV, 108 mV, 110 mV, and 82 mV dropout voltages at 400 K, for the output voltage levels 0.9 V, 1.2 V, 1.5 V, and 1.8 V, respectively. Post-layout simulation results of the overall LDO system present that the output voltage varies by 30 mV over the broad range of temperatures from 77 K to 400 K.

在这项研究中，已经开发了一种由两个LDO组成的低压差稳压器（LDO）系统，它们可以在77-400 K的温度范围内工作。在设计过程中采用了180 nm UMC CMOS工艺的低温和典型晶体管模型。两个LDO均可提供100 mA的负载电流，同时产生四个不同的输出电压电平（0.9 V，1.2 V，1.5 V，1.8 V）。LDO系统在输出电压为0.9 V，1.2时，在77 K时提供70 mV，60 mV，60 mV和50 mV的跌落电压，在400 K时提供111 mV，108 mV，110 mV和82 mV跌落电压。 V，1.5 V和1.8V。整个LDO系统的布局后仿真结果表明，输出电压在77 K至400 K的宽温度范围内变化30 mV。