International Rectifier (IR) is a world leader in advanced power management technology, from digital, analog and mixed-signal ICs to advanced circuit devices, power systems and components. 449 Applications Notes

Analog Devices defines innovation in signal processing. ADI's analog, mixed-signal, and digital signal processing (DSP) integrated circuits (IC) play a fundamental role in converting, conditioning, and processing real-world phenomena such as light, sound, temperature, motion, and pressure into electrical signals to be used in a wide array of electronic equipment. 1728 Applications Notes

National Semiconductor is a semiconductor manufacturer, specializing in analog devices. The products of National Semiconductor include: display drivers, power management circuits, audio and operational amplifiers, communication interface products and data conversion solutions. 911 Applications Notes

Maxim Integrated Products was established in 1983 by Jack Gifford (1941-2009). Maxim delivers over 5,900 products: Interface Circuits, Power-Management Circuits, Automatic Identification, Microcontrollers, Fiber Optic Transceivers, Storage, RF Wireless Circuits. 1857 Applications Notes

Fairchild Semiconductor is a very important supplier of semiconductor technology. Fairchild continues to build on its rich history of innovation to address one of the greatest challenges we face today – reducing wasted energy and improving efficiency in an increasingly power-hungry world. 477 Applications Notes