Low dropout linear voltage regulator
A low-dropout linear and voltage regulator technology, which is applied in the direction of instruments, electric variable adjustment, control/regulation systems, etc., can solve problems such as unresponsive fast load transient switching, and achieve the purpose of increasing the input common-mode voltage range, reducing Effect of small amplitude, increased slew rate and bandwidth
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[0019] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0020] The structure diagram of the low dropout linear voltage regulator of the present invention is as follows figure 1 As shown, it includes power tube M0, buffer Buffer, first transconductance amplifier GmH, second transconductance amplifier GmL, current subtractor Σ and Miller compensation capacitor C3. The non-inverting input terminal of the buffer Buffer is connected to the external reference voltage source V REF , the inverting input terminates the output of the buffer. The non-inverting input terminal of the first transconductance amplifier GmH is connected to the output V of the LDO OUT , the inverting input terminal is connected to the output of Buffer. The non-inverting input terminal of the second transconductance amplifier GmL is connected to the output of Buffer, and the inverting input terminal is connected to the output V of...
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