Fuji Electric Power Supply ICs Providing Multiple Solutions for Multiple Requirements Energy-saving Power Management Realized with a Single Chip

Features: ¡ The single chip solution integrating power transistors and control circuits by C/DMOS process capable of built-in low on-resistance DMOS output transistors. ¡ Low power consumption by CMOS analog circuits. ¡ Wide range of applications for various power supply configurations such as synchronous rectification, switching polarity of drive transistors, etc. ¡ Wide variety of packages meeting demands for smaller and thinner size. Cover photo: Smaller size, lower power consumption and higher performance are never-ending demands for constantly evolving electronic devices. These same circumstances also apply to ICs, which are said to be the heart of these electronic devices. New products that incorporate the latest technology are developed in response to such demands. Fuji Electric provides a wide variety of distinctive ICs based on its proprietary CMOS analog technology , ranging from low-voltage to high-voltage devices. And these ICs contribute to the lower power consumption , higher performance and smaller size of the electronic devices in which they are used. The cover photo shows a photograph of a power supply IC installed in a portable electronic device, and this is superimposed over a drawing of the printed circuit diagram. The close-up photograph at the top right corner shows the newly developed 5mm × 5mm QFN (quad flat non-lead) package that houses the power supply IC. Utilizing core technologies of high voltage technology (power IC technology), high precision CMOS (complementary metal oxide semiconductor) analog technology and the associated digital control technology, Fuji Electric is expanding its offering of IC (integrated circuit) products which is concentrated on such devices as ICs for power supply units and driver ICs for FPDs (flat panel displays) (See Fig. 1). In the fields of application for these products, small size, light weight, low power consumption and multi-functionality are required. The most important requirement is for low power consumption, which will contribute to efforts to protect the global environment. In response to these requirements, Fuji Electric has developed a low-power high-voltage CMOS analog technology, and has applied this technology to the ICs for power supply units to commercialize power supply ICs for AC adapter-use, cellular phone-use, DSCs (digital still cameras)-use, etc. In the field of high-voltage devices, Fuji Electric is expanding its product line-up and has developed highly reliable device and process technologies for integrating a 700 V breakdown voltage power MOSFET (metal oxide semiconductor field effect transistor) into an IC device and IC production technology for …