OKI Increases Lineup Of Power Management LSIs For Mobile Devices

Oki Electric Industry Co., Ltd. announced the launch of 8 new models of power management LSIs suitable for mobile devices. The new LSIs, which will be available from January 2008, are said to provide low power consumption, low noise and high efficiency.

"We entered the power management LSI market in July 2006 to leverage our strength in manufacturing technologies for high-voltage and lower power consumption devices, which are widely used in manufacturing processes and TFT LCD driver LSIs. The models we add today significantly reduce power consumption which means longer battery life for mobile devices," said Takaki Yamada, President of Silicon Microdevice Company at Oki Electric Industry. "Going forward we will continue to provide various kinds of power management LSIs with a variety of functions, not only for mobile and portable devices but also for flat panel displays and printers."

The company states that mobile devices, such as mobile phones, are becoming sophisticated with built-in camera, music player, TV tuner for one-segment broadcasting and capability for handling electronic money – all of which require longer batter life. OKI claims that its new LDO regulator provides power consumption of 50-100nA in standby mode and 3-12µA in no-load mode. This is said to be an 80-90% reduction in power consumption compared to the industry standard, and is suitable for sophisticated mobile devices. The efficiency of OKI’s step-down dc-dc converter is 95% at an output current of 500mA, which is said to be higher than conventional converters, thus offering what is described as an attractive solution as the main power supply for digital still cameras.