Abstract
A low dropout (LDO) linear voltage regulator, dubbed TH7150, is designed and reported. TH7150 is a power management device for analog chips, operating at low quiescent current (100uA), low voltage supply (1.6-3.6V), with low dropout voltage (200mV), and capable of driving 150mA output current. Its output voltage is programmable by logic control and also manually adjustable. It features protection measures for overheating and overloading and monitoring for the output voltage to prevent a dropout greater than 10% of current value. The chip is designed to be fabricated using 0.35 um process. It can be used as a standalone chip or integrated in a power supply chip for portable devices such as Smart phone, cell phone, Ipod, digital camera etc.
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