This paper proposes a low power bandgap reference voltage circuit that provides an output reference voltage close to the bandgap voltage having a low output resistance and allows resistive loading. This proposed circuit is design and implemented using the TSMC 0.18μm 1P6M CMOS process. Simulation and measured results verify that the chip size is with power dissipation about 0.1mW, and the operation temperature range formwith temperature coefficient about . The chip supply voltage can from 1.3 to 1.8V with PSRR about 70 dB, and its output reference voltage can stable on .
This paper proposes a low bandgap reference voltage circuit with low temperature coefficient and independent of suply voltage for applications to power management IC. This proposed circuit is design and implemented using the TSMC 0.35μm CMOS 2P4M process. Based on simulated and measured results , the chip size is 20.6000.680mm with power dissipation about 3.3mW, and the operation temperature range form 0Cto 100C with temperature coefficient about 9.29/ppmC. The chip suply voltage can from 2.9V to 3.3V with PSRR about 44.2 dB, and its output reference voltage can stable at 0.65V.
As the progress with all kinds of mixed-mode signal circuits, the requirements of power management become increasingly stringent. Therefore it takes all kinds of high-performance linear regulator to produce a very clean and stable voltage. Here cascading technique is used to increase the output impedance in this architecture. The output voltage is less susceptible to variation of input voltage, resulting in a clean and stable voltage which is used the operating voltage of internal circuits in a mixed-mode signal integrated circuit chip. This paper using the TSMC 0.35μm CMOS 2P4M process to implement the design of high PSRR LDO regulator, having chip area, 1.34 mW consumption power. The chip supply voltage can from 2.9V to 3.3V with -106dB and -65dB PSRR at 1KHz and 100KHz, and its output voltage can stable at 1.2V and less than 2.4mV ripple voltage at maximum loading current 20 mA.
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