Fadu Inc.

Samsung Electronics Co., Ltd.

Kichang Jang

Jinup Lim

Seonho Kim

Jongchul Chae

Chiweon Yoon

Seongjin Kim

Cheonan Lee

Dojeon Lee

Jayang Yoon

Disclosed is a power loss protection integrated circuit. In the power loss protection integrated circuit, an interrupt device is arranged on an electrical path between an output terminal of a buck converter and a low voltage capacitor such that a flow of current to the low voltage capacitor is limited upon initial operation to ensure stability of an output voltage of the buck converter, and after the passage of a predetermined time, the interrupt device is fully turned on when a voltage of the low voltage capacitor is almost the same as the output voltage of the buck converter such that the voltage of the low voltage capacitor is electrically connected to the output voltage of the buck converter.

Power loss protection integrated circuit using low voltage capacitor

The present invention relates to a direct current/direct current (DC/DC) converter. According to the present invention, output ends of a plurality of converter circuits, each having two switches in a single fabricated integrated circuit (IC), are integrated by selectively connecting them to each other in the outside depending on the amount of current required for operation of the IC. Therefore, the DC/DC converter can operate with maximum efficiency in various user-desired load current ranges.

DC/DC converter for providing maximum efficiency in various load current ranges

A semiconductor device includes a first voltage generating circuit configured to output a first voltage based on temperature; an analog-to-digital converter configured to convert the first voltage into a temperature code; a code conversion logic configured to output an offset code and a level code of a temperature section which the temperature belongs among temperature sections based on the temperature code; an offset voltage generating circuit configured to output an offset voltage based on the offset code; a second voltage generating circuit configured to output a second voltage having a constant value within a temperature section based on the level code; and a temperature compensation voltage generating circuit configured to receive the first voltage, the second voltage, the offset voltage, and a feedback voltage and output a temperature compensation voltage, the feedback voltage based on the first voltage, the second voltage, and the offset voltage.

Semiconductor device

Disclosed is a power loss protection integrated circuit. According to one embodiment, the power loss protection integrated circuit includes a buck/boost converter controller that operates in buck mode in a normal power supply state such that a portion of the power is used to store energy in a low voltage capacitor and operates in boost mode when the power supply is cut off such that the energy charged in the low voltage capacitor is utilized to supply emergency power to a main system.

According to the present disclosure, a nonvolatile memory device may include an operational amplifier comparing a reference voltage with a voltage of a feedback node; a first feedback network circuit generating a first output voltage by dividing an input voltage in response to an output voltage of the operational amplifier, and transmitting a voltage corresponding to the first output voltage to the feedback node in response to a first feedback signal, a second feedback network circuit generating a second output voltage by dividing the input voltage in response to the output voltage of the operational amplifier, and transmitting a voltage corresponding to the second output voltage to the feedback node in response to a second feedback signal, and a third feedback network circuit generating a third output voltage by dividing the input voltage in response to the output voltage of the operational amplifier, and transmitting a voltage corresponding to the third output voltage to the feedback node in response to a third feedback signal.

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Seoul, South Korea

Kichang Jang