As the chip size is shrinking,not only the number of transistors on a chip in the increasing variety of functions and also on the rise,the trend of circuit design gradually contains analog circuits and digital circuits hybrid circuit design,the complexity is greatly enhanced,verification problems are facing great difficulties. Previously the model description is only used
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With the fast growing demand of portable electronic-products, pursuing high performance and low cost power management integrated circuit is still a hot field, so it is of great importance and has reality contribution to research the LDO linear regulator circuit.The object of this paper is to design low dropout voltage regulator (LDO) with TSMS 0.6μm
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At present, integrated power management solution has been a main concern of power management products. This work is based on the design of a monolithic buck converter in the 24th institute of CETC. The integrated solution in this thesis consists of a LDO and a buck converter. The main work of this thesis is the
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With the rapid development of integrated circuit (IC), several kinds of power chip are occupying such a flourishing market. Whether personal advanced computers or high performance microprocessors have high-efficiency and intelligent power management, directly impacts the performance of whole electronic system. This paper designs a low dropout (LDO) voltage linear power chip as one kind
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As IC process geometries continue to shrink,the circuit operating voltage is correspondingly reduced.0.18μm stand CMOS IC process voltage of 1.8V,while the 90nm process,operating voltage is reduced to 1V.In this context,based on CMOS technology under a variety of low-voltage analog circuits has been widespread concern.Voltage reference source as an important basic modules are widely used in
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As the development of the Internet age, the unlimited increasing data has put forward some new demands to the servers, such as saving space, easy to implementing centralized management and providing uninterruptedly service. So the Blade Server was born.In the system of Blade Server, every signal board performance and integration has improved a lot.The power
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During recent years, the over-sampling and noise-shaping technology of sigma-delta modulator is widely used in the interface between analog and digital circuits. The two kinds of technology have some advantage in realizing high precision analog to digital converter, simultaneously decreasing the system power. Sigma-Delta ADC requires imprecise matching circuits comparing other kinds of ADC. Sigma-Delta
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This paper focuses on the study of stability and frequency compensation technique of capacitor-less LDO which is suitable for the SoC appliances. On the basis of analysis for the pole-zero location and the stability of conventional LDO with off-chip capacitor and the basic LDO structure, the basic compensation method of capacitor-less LDO is described in
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LDO is one of the power management technologies, which has many excellent features such as small area, high power supply rejection ratio, low-power, low noise, good linearity of the transient response and load transient response characteristics, simple external circuit, and so on. LDO can be used in various of portable electronic products and Embedded IC
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High power LED have the advantage of the high light effect and high current except the common LED characteristics of energy saving, long lifespan, environmental protection and high reliability. It makes”Green Lighting”apply to street lamp, fitment lighting and car lamp more wider. The increase of the LED power have higher requirement for the drive current
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