Cherry Semiconductor Announces First Dual-Input Linear Regulator With Auxiliary Control.Business/Technology Editors EAST GREENWICH, R.I.--(BUSINESS WIRE)--Feb. 28, 2000 Highly integrated solution provides higher current capability and meets next-generation Ethernet NIC (1) (Network Interface Card) See network adapter. See also InterNIC. (2) (New Internet Computer) An earlier Linux-based computer from The New Internet Computer Company (NICC), Palo Alto, CA. and PCI card requirements . Cherry Semiconductor (Nasdaq:CHER), a leading supplier of power management ICs to computer and power supply manufacturers, today announced the industry's first dual input linear regulator with auxiliary control. With two inputs and auxiliary control, the CS5233 is designed to seamlessly power network interface cards (NICs) and other Peripheral Component Interconnect See PCI. (hardware) Peripheral Component Interconnect - (PCI) A standard for connecting peripherals to a personal computer, designed by Intel and released around Autumn 1993. PCI is supported by most major manufacturers including Apple Computer. (PCI (1) (Payment Card Industry) See PCI DSS. (2) (Peripheral Component Interconnect) The most widely used I/O bus (peripheral bus). ) bus cards in compliance with Intel's Instantly Available PC (IAPC IAPC Instantly Available PC IAPC International Auditing Practices Committee IAPC International Association of Pet Cemeteries IAPC International Association for the Presa Canario IAPC Illinois Association of Pet Crematories IAPC Internet anti Piracy Campaign ) standard, as well as next-generation PCs compliant with Intel's ATX See ATX motherboard. (hardware, standard) ATX - An open PC motherboard specification by Intel. ATX is a development of the Baby AT specification with the motherboard rotated 90 degrees in the chassis. specification. The ATX bus specification defines two +5V sources (VINPUT, and VSTANDBY), and one auxiliary +3.3V source (3.3VAUX). The CS5233 provides a glitch-free 3.3V (+/-2%) output from one of three possible supplies: VINPUT, VSTANDBY or 3.3VAUX. Its on-chip linear regulator powers output loads directly when either VINPUT or VSTANDBY is available, alternatively VAUXILIARY delivers power to an external PFET that transmits its 3.3VAUX supply to the load. A single CS5233 replaces a two diode, wired OR circuit that feeds a single input regulator. This approach eliminates voltage headroom and threshold problems associated with the diodes that are needed for channel switching. Superior performance, greater load currents, thermal shut down and low thermal resistance packaging are key attributes of the CS5233. Available in either 8-lead narrow SOIC (Small Outline IC) A small-dimension, plastic, rectangular, surface mount chip package that uses gull-wing pins extending outward. See gull-wing lead, SOJ and chip package. or 5-lead D2PAK PAK, n.pr See pyridoxal-alpha-ketoglutarate. packages, the CS5233 provides up to 500mA or 1.5A load current, respectively, with 1mV line regulation and 5mV load regulation at 10mA IOUT. Both versions feature 800mA (SOIC) and 2.4A (D2PAK) current limit protection and an on-chip thermal monitor that enacts shutdown in the event that junction temperatures reach 180(Degree)C. An internal composite NPN-PNP pass transistor contributes to lower dropout voltage and requires less supply current than standard PNP devices. Fred Baechtold, senior marketing engineer at Cherry Semiconductor, said, "The PC industry has responded to the business need for desktops to connect to networks with NICs that promise greater availability at higher bandwidths. The CS5233 helps make better connectivity possible by providing dual input auxiliary control to power the NIC from one of the standby sources during the powered-down state of the power rails. It also delivers the high current outputs that faster data rate NICs require." The CS5233 5-lead D2PAK is also pin-for-pin and backward compatible with Cherry's CS5231 5-lead D2PAK linear regulator with auxiliary control. Prices in 10,000 piece quantities are $1.23 for the 1.5A linear regulator and $.88 for the 500mA linear regulator. CS5233 data sheets can be downloaded at www.cherry-semi.com/product/PDF/CS-5233PDF (Portable Document Format) The de facto standard for document publishing from Adobe. On the Web, there are countless brochures, data sheets, white papers and technical manuals in the PDF format. .pdf. Samples and production volumes are available from stock. About Cherry Semiconductor Cherry Semiconductor Corporation designs and manufactures standard and custom integrated circuits for the automotive, communications, computer and power management markets worldwide. As both a QS-9000 and ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9001 certified facility, Cherry Semiconductor pursues a corporate quality goal of 2.0 defects per billion on all new product. Cherry Semiconductor Corporation is a wholly owned subsidiary Wholly Owned Subsidiary A subsidiary whose parent company owns 100% of its common stock. Notes: In other words, the parent company owns the company outright and there are no minority owners. of The Cherry Corporation, Waukegan, Illinois. E-mail: info@cherry-semi.com More Information On Our Web Site: http://www.cherry-semi.com |
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