| 摘要 |
A voltage regulator (200) that includes a transistor (210), a first amplifier (220) and a second amplifier (230). The voltage regulator (200) maintains a voltage between a first node (202) and a second node (204) within a predetermined range by maintaining a current level flowing from the first node (202) to the second node (204). The transistor (210) has a first pole electrically coupled to the first node, a second pole electrically coupled to the second node and a gate. The first amplifier (220) has a first input, a second input and an output, and the second amplifier (230) has a first input, a second input and an output, wherein the first inputs of the first and second amplifiers are electrically coupled to the first node (202), the second inputs of the first and second amplifiers are electrically coupled to the second node (204), and the outputs of the first and second amplifiers are electrically coupled to a gate of the transistor (210), respectively. The first (220) and second amplifiers (230) have different characteristic response times to reach a saturation voltage value. For example, the characteristic time for the second amplifier (230) is faster than that of the first amplifier (220).
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