Magnachip Mixed-signal, Ltd.

Magnachip Semiconductor, Inc.

Gilsung Roh

Youngjoon Kim

Jiyun Kim

Yongsup Lee

Kwonyoung Oh

Jinseok Yang

Chelho Chung

Sangkyung Kim

A low voltage drop output regulator and a method for controlling thereof for preventing an inrush current that occurs momentarily during an initial operation of a circuit are described. The low voltage drop output regulator includes a differential amplifier configured to output an amplified voltage by comparing a reference voltage with a feedback voltage, a first MOS transistor configured to output an output voltage to a drain terminal by receiving the amplified voltage in a gate terminal, and an inrush preventer connected between a power voltage terminal and a drive node to prevent the inrush current of the first MOS transistor during an initial operation period. The inrush preventer includes a determining unit and a limiter, and the limiter is configured only by a MOS transistor and a switch connected in series between a power voltage terminal and a drive node.

Low voltage drop output regulator for preventing inrush current and method for controlling thereof

The present disclosure relates to a temperature sensor provided in a display driver circuit and an operating method thereof. Disclosed is a temperature sensor provided in a display driver circuit including: a reference voltage generating unit configured to output a set reference voltage; a proportional voltage generating unit configured to output a proportional voltage proportional to a temperature of the circuit; a comparison unit configured to output a flag voltage by comparing magnitudes of the reference voltage and the proportional voltage; and a sensor control unit configured to control the reference voltage generating unit and the proportional voltage generating unit.

Temperature sensor for display driver circuit and operating method thereof

A spread spectrum clock generation device that may reduce electromagnetic interference (EMI) includes: a first comparator configured to compare an input signal with a first reference voltage and output a first comparison signal; a second comparator configured to compare the input signal with a second reference voltage and output a second comparison signal; a latch configured to receive the first and second comparison signals as inputs and output an output signal; and a delaying circuit configured to generate the input signal by delaying the output signal to have a different delay time for each time interval.

Spread spectrum clock generation device

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Cheongju-si, South Korea

Gilsung Roh