Rapid development makes electronic products become smaller

LSI makes the rapid development of electronic products become smaller, prompting a portable electronic products such as mushroom  electric meter flourish, constantly adding new features and capabilities, making electronic products become more complex, as the operation of  electric transformer core - the power is facing a growing challenge. LDO power regulator low dropout and low noise characteristics make it a portable electronic device market has an irreplaceable role, so the research and improve performance of LDO has great significance.