Exar Launches Enhanced 2A PowerBlox Step-Down Regulator XRP7674

Exar Corporation (NASDAQ: EXAR), a leader in high-performance analog mixed-signal devices and data management solutions, recently released a new synchronous pulse frequency modulation and pulse width modulation (PFM/PWM) buck regulator - XRP7674, which provides a maximum load current of 2A and an operating input voltage of up to 18V. As a new member of Exar's high-voltage, high-current buck regulator PowerBloxTM family, it provides customers with a compact and integrated solution, and its improved light-load efficiency helps to obtain more than 90% efficiency conversion at output currents as low as 50mA.

　　The XRP7674 is optimized for 5V and 12V inputs and is designed to meet the needs of high-efficiency devices and the latest Energy Star certified devices. These include audio-video equipment where light load efficiency is critical, such as set-top boxes and gaming systems, telecommunications, computer peripherals, distributed point-of-load conversion and portable applications.

　　“Energy-efficient products are not only about energy expenses, they also have the function of running cooler, ultimately improving overall reliability and operation.” Eric Pittana, Marketing Director of Exar’s Power Product Line, concluded: “The XRP7674 provides uninterrupted point loads for a wide range of currents, achieving excellent efficiency without adding additional solution cost.”

　　Product Information

　　The XRP7674 is a synchronous current mode PFM/PWM step-down (Buck) regulator capable of providing up to 2A of output current. With up to 95% efficiency, over 85% conversion efficiency is achieved between 30mA and 2A load current. With a fixed switching frequency of 340kHz, the XRP7674 output voltage is adjustable to 0.925V with an accuracy of ±2% over the entire operating range. A dedicated enable pin and programmable soft-start provide design flexibility for any load point. Built-in current limiting, output overvoltage and thermal shutdown protection ensure fail-safe operation of the XRP7674. The XRP7674 offers an upgrade to Exar's popular XRP7664 product in the same package.

　　Product Launch

　　The XRP7674 is available now and can be purchased through authorized distributors or by visiting Exar's website and selecting "order samples". The XRP7674 is RoHS compliant, "green" and halogen-free and is available in an 8-pin SOIC package.

　　For more information about XRP7674, please visit online.

　　For more information on Exar's power management products, visit www.exar.com/power-management.

　　About Exar

　　Exar is committed to designing, developing and selling high-performance analog mixed-signal integrated circuits and advanced subsystem solutions for the network and storage, industrial and embedded systems, and communication architecture markets. Exar products cover power management and connection components, communication products, network security, and storage optimization solutions. Exar's branches are spread all over the world to ensure real-time customer support.