Invention Grant
- Patent Title: Voltage regulator
- Patent Title (中): 电压调节器
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Application No.: US14504133Application Date: 2014-10-01
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Publication No.: US09385584B2Publication Date: 2016-07-05
- Inventor: Yuji Kobayashi , Teruo Suzuki
- Applicant: Seiko Instruments Inc.
- Applicant Address: JP
- Assignee: SII Semiconductor Corporation
- Current Assignee: SII Semiconductor Corporation
- Current Assignee Address: JP
- Agency: Brinks Gilson & Lione
- Priority: JP2013-208142 20131003
- Main IPC: G05F1/00
- IPC: G05F1/00 ; H02M1/08 ; G05F1/56 ; G05F1/46 ; G05F1/567

Abstract:
Provided is a voltage regulator including a leakage current correction circuit capable of keeping the accuracy of an output voltage of the voltage regulator even when an output voltage of a reference voltage circuit is decreased due to the influence of a leakage current. The voltage regulator includes: a reference voltage circuit configured to output a reference voltage; an output transistor configured to output an output voltage; a voltage divider circuit configured to divide the output voltage to output a feedback voltage; an error amplifier circuit configured to amplify a difference between the reference voltage and the feedback voltage, and output the amplified difference to control a gate of the output transistor; and a leakage current correction circuit connected to an output terminal of the voltage divider circuit. The leakage current correction circuit is configured to decrease the feedback voltage to prevent the output voltage from dropping at high temperature.
Public/Granted literature
- US20150097543A1 VOLTAGE REGULATOR Public/Granted day:2015-04-09
Information query
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