New Power MOSFETs Aimed at Portable Designs With Plug-in Accessories

    SANTA CLARA, Calif.--June 29, 2001--Siliconix incorporated , an 80.4 percent-owned subsidiary of Vishay Intertechnology Inc. Friday announced the release of the first ESD-protected devices in its lead-less ChipFET(TM) power MOSFET series.
    The new p-channel devices, which occupy a footprint measuring 3.05 by 1.80 mm, provide an extra measure of protection when used to switch power in systems with attachable/detachable accessories such as SIM cards, Bluetooth adapters, IrDA adapters, MP3 adapters, and cable connections to other portable equipment.
    Typical applications for the new ChipFETs will include load switching, battery charger switching, and power amplifier switching in cell phones, PDAs, and other portable devices.
    In addition to giving designers more flexibility in how and where power circuitry is laid out, their 5000-V ESD protection will help to increase manufacturing yields, since fewer devices will be affected by handling during the production process.
    Lead-less Vishay Siliconix ChipFETs occupy approximately half the board area required by a leaded TSOP-6, allowing designers to shrink the power management circuitry for cell phones and notebook computers into about half the space previously needed.
    By eliminating the leads found in conventional MOSFET packages, ChipFETs allow designers to reclaim board space that would otherwise be wasted and thus to add new features or capabilities within a smaller area.
    Designed to minimize conduction losses, the new ChipFETs additionally feature low on-resistance ratings, ranging from 62 milliohms to 37 milliohms at a -4.5-V gate drive. All three devices are also rated for operation at 2.5 V and 1.8 V. Maximum current handling ranges from -5.1 A to -7.0 A depending on gate-source voltage.
    Siliconix, a company of Vishay Intertechnology Inc., is a leading manufacturer of power MOSFETs, power ICs, and analog switches for computers, cell phones, fixed communications networks, automobiles, and other electronic systems.