Samsung Electronics Co., Ltd.

Junghun Heo

Dongsuk Shin

Youngduk Kim

Joonseok Kim

Kyungsoo Lee

Changsoo Kim

Junho Huh

Kyoungmin Lee

Youn-Sik Choi

Byungchul Jeon

Myungchul Cho

A power management approach for a mobile device includes comparing a battery provided power supply voltage to a reference voltage in order to generate an alarm signal. In response to the alarm signal the frequency of an operating clock applied to a system-on-chip is changed.

Power management integrated circuit, power management method, mobile device and clock adjusting method

A mobile device includes; a PCB including a first side and a second side, a PMIC generating power supply voltages and mounted on the second side of the PCB, a package substrate mounted on the first side of PCB using first interconnects, an IC mounted on the first side of the package substrate, LDO regulators mounted on the second side of the package substrate and disposed between the first interconnects, and high density capacitors disposed between each of the LDO regulators and the second side of the package substrate, wherein the PCB includes first electrical paths connecting the PMIC to the LDO regulators, and the package substrate includes second electrical paths connecting the LDO regulators to the IC.

Mobile devices and methods controlling power in mobile devices

A power management device includes at least one switching regulator to generate a conversion voltage from an input voltage, a plurality of low drop-out regulators to generate a plurality of output voltages from the conversion voltage, and a controller to estimate drop-out voltages of the low drop-out regulators based on output currents of the low drop-out regulators and to dynamically control the conversion voltage based on the estimated drop-out voltages.

Power management device and electronic device including the same

A mobile system includes a SOC and PMIC. The SOC includes a first signal processing circuit and a second signal processing circuit, and generates a dynamic voltage scaling (DVS) control signal based on operating states of the first signal processing circuit and the second signal processing circuit. The PMIC generates a supply voltage whose magnitude is controlled in response to the DVS control signal, and provides the supply voltage to the first signal processing circuit and the second signal processing circuit through a single power rail.

System on chip receiving supply voltage(s) via merged power rail, and mobile system including same

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Suwon-si, South Korea

Junghun Heo