低压降稳压器(LDO)是设计用于提供稳定且指定的DC电压且输入至输出电压差较低的电路。为了采用一种新的电源管理方法来设计一种低压差稳压器,该稳压器提供了一种现代的片上系统(SoC)解决方案,并能够满足当前的商业需求以及未来的未来需求,设计可提供全方位性能的LDO稳压器。此LDO应注意各种性能矩阵。同样,未来的nm技术在实现大多数性能规格方面也具有更多优势。本文提出了一种低压低压差稳压器,该稳压器能够通过使用两个二进制输入控制信号来提供低压差小的稳压输出,并提供一系列不同的电压。整个电路采用32 nm技术进行设计,并使用Microwind工具进行仿真。该设计利用了一个共基共栅电流放大器,该放大器与在亚阈值区域内工作的高阈值PMOS一起使用,负责提高增益并产生所需的输出电压。
Low drop-out regulators (LDO) are circuits which are designed to provide a stable and specified DC voltage, with a low input-to-output voltage difference. To get a new approach of power management towards a design of a low drop-out voltage regulator that provides a modern system on chip (SoC) solution and fulfils the present commercial requirements as well as the upcoming demands of the future, it becomes necessary to design the LDO regulator which gives all-rounder performance. This LDO should beware of various performance matrices. Also future nm technology offers more advantages in achieving most of the performance specifications. This paper presents a lowvoltage low-dropout regulator that is capable of providing regulated output with small drop-out voltage and offers a range of different voltages, by using two binary-input control signals. The entire circuit has been designed in a 32 nm technology and simulated using Microwind tool. This design utilizes a cascode current amplifier used with a high threshold PMOS operated in the sub-threshold region, which is responsible to boost the gain and yield the desired output voltage.
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