| 摘要 |
According to one embodiment, the semiconductor device includes a power-on reset circuit and a constant voltage generation circuit. The power-on reset circuit generates a power-on reset signal to initialize an internal circuit when power supply is turned on. The constant voltage generation circuit supplies an output voltage to the internal circuit. The constant voltage generation circuit includes a differential amplifier, a first MOS transistor, a second MOS transistor, a switch, and a pull-up unit. The pull-up unit is provided between the power supply input terminal and the gate terminal of the second MOS transistor. The pull-up unit controls a voltage applied to the gate terminal of the second MOS transistor in accordance with the power-on reset signal. |
