公开(公告)号：US20140117950A1

公开(公告)日：2014-05-01

申请号：US13662612

申请日：2012-10-29

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Eng Jye Ng ,  Kien Beng Tan

IPC: G05F1/10

CPC classification number: G05F1/575

Abstract: A voltage regulator circuit includes a differential amplifier stage. The gate terminal of a first n-channel MOSFET is coupled to an output of the differential amplifier stage. A resistor is coupled between the drain terminal and gate terminal of the first n-channel MOSFET. The drain terminal of the first n-channel MOSFET drives the gate of a second n-channel MOSFET whose drain terminal is at the input of a current mirror circuit. An output of the current mirror circuit forms the regulated voltage output. A feedback circuit is coupled between the regulated voltage output and one input of the voltage regulator circuit. Another input of the voltage regulator circuit is configured to receive a reference voltage.

Abstract translation: 电压调节器电路包括差分放大器级。 第一n沟道MOSFET的栅极端子耦合到差分放大器级的输出端。 电阻器耦合在第一n沟道MOSFET的漏极端子和栅极端子之间。 第一n沟道MOSFET的漏极端子驱动漏极端子处于电流镜电路的输入端的第二n沟道MOSFET的栅极。 电流镜电路的输出形成稳压电压输出。 反馈电路耦合在稳压电压输出和稳压电路的一个输入端之间。 电压调节器电路的另一输入被配置为接收参考电压。