公开(公告)号：US20230045744A1

公开(公告)日：2023-02-09

申请号：US17709853

申请日：2022-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinook JUNG ,  Jaewoo PARK ,  Junhan CHOI ,  Myoungbo KWAK ,  Junghwan CHOI

IPC: G05F1/575 ,  G11C11/4074 ,  G11C11/4093 ,  G11C11/4076

Abstract: Disclosed is a low dropout regulator which includes a first resistor, a first transistor including a gate terminal connected with a first end of the first resistor, a source terminal connected with a power supply voltage terminal, and a drain terminal connected with a first node, an operational amplifier including input terminals respectively connected with a reference voltage and the first node and an output terminal, a second transistor including a gate terminal connected with the output terminal of the operational amplifier, a source terminal connected with the first node, and a drain terminal connected with a second node, a third transistor including a gate terminal connected with a second end of the first resistor, a source terminal connected with the power supply voltage terminal, and a drain terminal connected with a third node, and a current source connected between the second node and a ground voltage terminal.

公开(公告)号：US20220404852A1

公开(公告)日：2022-12-22

申请号：US17577201

申请日：2022-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Woochul JUNG ,  Myoungbo KWAK ,  Jaewoo PARK ,  Eunseok SHIN ,  Junhan CHOI

IPC: G05F1/575 ,  G11C5/14 ,  G11C8/18 ,  G11C8/10

Abstract: A voltage regulator and a semiconductor memory device having the same are disclosed. The voltage regulator includes an amplifier configured to amplify a difference between a reference voltage and a feedback voltage to generate an amplifier output voltage, a voltage feedback unit connected between an output supply voltage generation node and a ground voltage and configured to generate the feedback voltage, a first transfer gate unit connected between an input supply voltage and the voltage generation node and driven in response to the amplifier output voltage to provide first current, a current load replica unit connected between the voltage generation node and the ground voltage and configured to consume the first current, and a transfer unit connected between the input supply voltage and the voltage generation node and driven in response to the amplifier output voltage when the current load unit performs an operation, to provide second current.