Low dropout linear regulator
A low-dropout linear voltage regulator technology, which is applied in the direction of instruments, electric variable adjustment, control/regulation systems, etc., can solve the problem of affecting the output voltage stability, low-dropout linear voltage regulator response characteristics, and can not quickly respond to output voltage Rapid changes and other problems, to achieve the effect of suppressing changes, maintaining output voltage, and fast response speed
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[0012] The invention discloses a low-dropout linear regulator, such as figure 2 As shown, figure 2 It is a schematic structural diagram of a low-dropout linear regulator in an embodiment of the present invention. The low dropout linear regulator includes a voltage divider circuit 10, an error amplifier EA1, an output transistor T, and a current feedback circuit 11.
[0013] The voltage divider circuit 10 is based on the output voltage V of the low dropout linear regulator O Generate feedback voltage V FB . Specifically, the voltage divider circuit 10 includes a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is connected to the second end of the output transistor T, and the second end of the first resistor R1 is connected to the second end of the output transistor T. The first end of the two resistors R2 is connected, and the second end of the second resistor R2 is grounded to GND. In this embodiment, the second end of the first resistor R1 ...
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