Embodiments of this invention provide a voltage output test circuit, a voltage divider output circuit, and a memory. The voltage output test circuit includes: a first voltage divider unit, including a first terminal and a second terminal, where the first terminal of the first voltage divider unit is connected to a test power supply, and the second terminal of the first voltage divider unit is connected to an output terminal; a second voltage divider unit, including a first terminal and a second terminal, where the first terminal of the second voltage divider unit is connected to a ground, and the second terminal of the second voltage divider unit is electrically connected to the output terminal; and a third voltage divider unit, configured to adjust a resistance between the output terminal and the ground.

Embodiments of this invention provide a voltage output test circuit, a voltage divider output circuit, and a memory. The voltage output test circuit includes: a first voltage divider unit, including a first terminal and a second terminal, where the first terminal of the first voltage divider unit is connected to a test power supply, and the second terminal of the first voltage divider unit is connected to an output terminal; a second voltage divider unit, including a first terminal and a second terminal, where the first terminal of the second voltage divider unit is connected to a ground, and the second terminal of the second voltage divider unit is electrically connected to the output terminal; and a third voltage divider unit, configured to adjust a resistance between the output terminal and the ground.

A power supply device has an output portion that generates an output voltage from an input voltage and supplies the output voltage to a load, an output feedback controller that drives the output portion by performing output feedback control, and a first detector that detects, by means of an electromagnetic induction method, a change in a first monitoring target current due to a load change. The output feedback controller reflects a detection result from the first detector into the output feedback control.

A voltage stabilizing circuit includes an input capacitor, a booster circuit having an input side coupled across the input capacitor, a first output capacitor coupled to an output side of the booster circuit, and a series connection of a first power switch and a second output capacitor coupled between two terminals of the first output capacitor. The first power switch has a terminal coupled to one terminal of the first output capacitor. The second output capacitor has a first terminal coupled to the other terminal of the first power switch at a common node, and a second terminal coupled to the other terminal of the first output capacitor. A second power switch is coupled between the input capacitor and the common node.