Sipex Introduces New 700mA Boost Regulator with Dual Reference and Load Disconnect

MILPITAS, Calif., July 5 /PRNewswire-FirstCall/ -- Sipex Corporation (NASDAQ: SIPX) today announced the newest addition to its extensive portfolio of highly efficient power management products with the SP7648, a 700mA boost regulator. This feature rich device is an ideal solution for today's low power systems through its ability to power Li-Ion based battery applications to their fullest extent.

The SP7648 uses a current limited minimum off time control scheme, which combines the high efficiency at light loads of PFM control with the high efficiency at full loads of PWM control. The SP7648 thus consumes a very low quiescent current, while delivering up to 700mA output current at efficiencies as high as 94%.

The SP7648 features True-Shutdown condition, which disables internal switching circuit and disconnects the load to isolate the current through the body diode. This feature eliminates leakage current from the battery and significantly reduces battery current consumption during shutdown.

The SP7648 equips dual reference voltages providing flexible circuit design and to optimize efficiency. With built-in internal 0.3 Ohms NMOS switch and synchronous rectifier there is no external diode needed which means the saving of space and a significant cost reduction.

The SP7648 device is designed to be the premier choice for Li-Ion battery powered devices, such as cell phone, PDAs, digital cameras, MP3 players and other consumer products.

    SP7648 Features and Packaging:

    -- True shutdown
    -- Integrated 0.3 Ohms synchronous rectifier
    -- 94% efficiency rating
    -- 5.0V fixed or adjustable output range
    -- Dual 0.8V / 0.288V low reference voltage
    -- Programmable peak current
    -- Standard 10 pin 3x3 DFN or 10 pin MSOP package

    Pricing and Availability:

The SP7648 is available now and is priced at $1.25 in 1,000 piece quantities. An evaluation board is also available to assist in the characterization and design in of the SP7648. Datasheets and additional information on the SP7648 and other Sipex products are available on the company web site at www.sipex.com.

About Sipex:

Sipex Corporation is a semiconductor company that designs, manufactures and markets, high performance, value-added analog integrated circuits that are used primarily by original equipment manufacturers (OEMs) operating in the markets of computing, communications, and networking infrastructure. Sipex serves the broad analog signal processing market with interface circuits, power management and optical storage ICs. Applications for the Company's products include personal computers and peripherals, battery powered hand-held devices such as PDAs and cellular telephones, networking, process controls and satellites.

CONTACT: Chris Lee, Technical Marketing Manager, +1-408-934-7500, or fax, +1-408-935-7600.

CONTACT: Chris Lee, Technical Marketing Manager of Sipex, +1-408-934-7500,
or fax, +1-408-935-7600

Web site: http://www.sipex.com/




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