一款低压高稳态线性稳压器XD1409的研究与设计

发布时间：2018-01-08 00:07

本文关键词：一款低压高稳态线性稳压器XD1409的研究与设计　出处：《西安电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：本文设计了一款600mA具有低的漏失电压,并且有很好稳定性、低静态电流的线性稳压器XD1409。它可集成在片上系统中,并且广泛应用于移动电话、无线调制解调器和个人数字助理(PDA)等快速响应、低功耗的便携式设备中。进入20世纪之后,集成电路技术和微电子技术都得到了迅猛的发展,并且在20世纪70年代的时候初步形成产业链。半导体技术的进步,使得集成电路广泛地应用到了国民经济和社会的所有领域,成为影响世界各国经济发展和国家安全的重要因素,电池电源和手提设备都需要电源管理技术,用来增加电池的使用寿命和设备的操作时间。电源管理器负责给系统里的子系统提供能量。这些子系统需要一个具有低的漏失电压、稳定性好、低噪声的模拟电压,这是线性稳压器的任务。每个低压线性稳压器都需要一个外部的大电容,容值范围从微米级到可操作级别。随着科技的不断发展,诸如移动电话,笔记本电脑等便携式设备需要不同的电平来为电源中不同的模块提供电压,所以近年来片上系统得到了广泛的应用,对于输出电压精度高、结构简单、功耗小、低噪声的线性稳压器,在电源管理芯片中占据着重要的地位,因此,在对于片上系统的研究中就有必要研究线性稳压器。本文首先介绍电源管理技术的研究背景和发展概括,然后对目前电源变换技术的分类进行分析,针对电源变换技术在当今便携式电子设备中的应用情况进行了介绍。而后对低压线性稳压器电路的基本原理及稳态工作模式进行了分析,并且对低压线性稳压器电路的稳定性进行了分析和讨论。在此基础上介绍了线性稳压器的各个重要的性能参数。根据芯片应用环境和市场需求,论文给出了芯片功能和性能的设计指标,对芯片的整体系统进行了分析和设计,确定芯片所需要的子电路模块,然后对芯片的典型应用电路和外围器件做了介绍。并详细地描述了芯片系统级工作原理以及基准电压电路、使能控制电路、误差放大器电路、控制关断模块电路以及限流折返保护电路等关键子模块的工作原理。最后芯片基于0.8μm 5V BiCMOS工艺,并利用Cadence和Hsipce平台进行系统的整体仿真,仿真结果表明所设计的线性稳压器的输入电压是5V,输出电压是1.8V,最大的负载输出电流是600mA。电源抑制比在lkHz时是75.98dB,线性调整率是0.016%/mV,负载调整率是0.02%/mA。因此该芯片完成了低的漏失电压、低的静态电流、稳定性好以及高电源抑制比的设计目标。
[Abstract]:This paper introduces the design of a 600mA low dropout voltage, and has good stability, low quiescent current XD1409. linear regulator which can be integrated in a system on chip, and is widely used in mobile phones, wireless modems and personal digital assistant (PDA), fast response, low-power portable devices. In twentieth Century after the integrated circuit technology and microelectronics technology has been rapid development, and formed the industrial chain in 1970s. The development of semiconductor technology, the integrated circuit is widely applied to all areas of the national economic and social, has become an important factor affecting the world economic development and national security, battery power and portable the equipment to the power management technology, operation time and service life of equipment to increase the battery. The power manager is responsible for the system in providing Energy. These systems require a low dropout voltage, good stability, low noise analog voltage, the linear regulator task. Each capacitor LDO requires an external capacitance value, range from micron to the operating level. With the development of science and technology, such as mobile phone the portable notebook computer equipment, etc. need different levels to provide voltage for different power supply module, so the system on chip in recent years has been widely used for high output voltage accuracy, simple structure, low power consumption, low noise linear regulator, the power management chip occupies an important position, therefore, in research on the system on chip in it is necessary to study the linear regulator. This paper first introduces the research background and development of power management technology summary, then the classification of power conversion technology According to the analysis, application of power conversion technology in today's portable electronic equipment is introduced in this paper. And then analyzed for low voltage linear regulator circuit principle and steady working mode, and the stability of low voltage linear regulator circuit is analyzed and discussed. On this basis, introduces the important performance parameters of each linear regulator according to the chip. The application environment and market demand, the paper gives the design parameters of chip function and performance, the whole system on chip is analyzed and designed, to determine the sub circuit chip is needed, then the typical application circuit of the chip and peripheral devices is introduced. And a detailed description of the working principle of the system level chip and a reference voltage circuit, the control circuit, error amplifier circuit, controlled shutdown module circuit and a current limiting protection circuit of key sub reentry The working principle of the chip module. Finally 0.8 m 5V based on BiCMOS technology, and the whole simulation system using Cadence and Hsipce platform, the simulation results show that the input voltage linear regulator design is 5V, the output voltage is 1.8V, the maximum output load current is 600mA. power supply rejection ratio at lkHz is 75.98dB, linear the adjustment rate is 0.016%/mV, load adjustment rate is 0.02%/mA. so the chip to complete the leakage of low voltage, low quiescent current, good stability and high power supply rejection ratio of the design target.

【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM44

【相似文献】