对低压设备的需求已开始开发歧管低压降(LDO)调节器。 本文介绍了已在CMOS技术中实现的各种LDO框架以及与LDO参数有关的框架的影响。 LDO体系结构通过其电源抑制(PSR)和瞬态响应性能进行评估。 瞬态响应性能主要取决于所添加的缓冲器,而PSR性能取决于传输设备的电容和LDO环路增益。
The demand for low voltage devices has initiated the development of Low Drop Out (LDO) regulator in manifold. This paper presents areview of various LDO frameworks that have been implemented in CMOS technologies and the impact of frameworks related to the parameters ofthe LDO. The LDO architecture is evaluated through its Power Supply Rejection (PSR) and transient response performance. The transient responseperformance mostly depends on the added buffer and the PSR performance depends on the pass device capacitance and the LDO loop gain.
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