Samsung Electronics Co., Ltd.

Jaeyeol Han

Takahiro Nomiyama

Jiseon Paek

Ikhwan Kim

Suho Lee

Ilyoung Sohn

Minsoo Cho

A regulating circuit including a first direct current (DC)-DC converter configured to apply a first supply voltage to a first node in a first mode and apply the first supply voltage to a second node in a second mode, a first low drop output (LDO) regulator connected to the first node, the first LDO regulator configured to provide an output voltage to an output node by regulating the first supply voltage of the first node, and a second LDO regulator connected to the first node, the second LDO regulator configured to provide an auxiliary current to the first node in the second mode may be provided.

Regulating circuit including a plurality of low drop out regulators and method of operating the same

A power converting circuit includes a voltage converting circuit, a feedback circuit, a driving signal generator, a transient state detector, and a resistance value adjuster. The voltage converting circuit changes a voltage level of an input voltage responsive to a driving signal, and outputs an output voltage according to the changed voltage level of the input voltage. The feedback circuit divides the output voltage to output the divided output voltage as a feedback voltage. The driving signal generator compares a level of the feedback voltage with a level of a reference voltage and outputs the driving signal. The transient state detector compares the level of the feedback voltage with the level of the reference voltage and outputs a transient state signal corresponding to a transient state of the output voltage. The resistance value adjuster adjusts the feedback resistance value, which divides the output voltage, responsive to the transient state signal.

Power converting circuit and hysteresis buck converter with changing response characteristic based on transient state of output voltage

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Suwon-si, South Korea

Jaeyeol Han