Fairchild Semiconductor's Highly Efficient, Inductorless DC-DC Converter Lowers Part Count and Extends Battery Life in Portable/Handheld Applications.Business Editors & High-Tech Writers SAN JOSE, Calif.--(BUSINESS WIRE)--Sept. 17, 2002 Fairchild Semiconductor International (NYSE NYSE See: New York Stock Exchange :FCS FCS - Frame Check Sequence ) introduces an inductorless, 100mA DC-DC DC-DC Direct Current to Direct Current (power conversion) converter that has greater than 90% efficiency, making it ideally suitable for portable and system voltage conversions. Achieving over 90% efficiency at full load with a typical operating current of just 120 micro-amp, the FAN5660 is one of the best-performing products of this type. Using only two low-cost capacitors, the charge-pump's 100mA output replaces switching regulators, eliminating inductors and their associated cost, size and EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. . The FAN5660 inverts a +1.5V to +5.5V input to a corresponding -1.5V to -5.5V output. Also, this new DC-DC converter can split or double a full load, +5.0V input voltage, of a power supply or battery, providing +2.25V in splitter mode and +9.5V in doubler mode. "The introduction of the FAN5660 supports our power management strategy of offering highly efficient power conversion solutions to our customers," said Tivadar Szabo, manager of Ultra Portable Products in Fairchild's Power Management Group. "The FAN5660, with its high conversion efficiency at full load, optimizes battery life in portable and handheld applications." Equipped with an onboard oscillator oscillator Mechanical or electronic device that produces a back-and-forth periodic motion. A pendulum is a simple mechanical oscillator that swings with a constant amplitude, requiring the addition of energy at each swing only to compensate for the energy lost because of air circuit, the FAN5660 charge pump allows flexibility in selecting appropriate operating frequencies. The oscillator can operate at either low or high frequencies. When selecting the low, 5kHz operating frequency, a very low quiescent current will result. A smaller capacitor can be used at the higher, 50kHz operating frequency. The FAN5660 can operate in three modes: inverter (1) A logic gate that converts the input to the opposite state for output. If the input is true, the output is false, and vice versa. An inverter performs the Boolean logic NOT operation. (2) A circuit that converts DC current into AC current. Contrast with rectifier. , splitter or doubler. As an inverter, it converts the input voltage in a range of 1.5V to 5.5V to a corresponding negative value. In voltage splitter mode it splits the input voltage in half, and in voltage doubler mode, it doubles the input voltage. Because the FAN5660 does not require an external diode in voltage doubler mode, it occupies less PCB PCB: see polychlorinated biphenyl. PCB in full polychlorinated biphenyl Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound. area in designs. The FAN5660 is provided in the space-saving 8-lead 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. package. This product complements Fairchild's broad range of inductor-based switching regulators, giving designers more flexibility and choice in their DC-DC conversion designs. Price: FAN5660 U.S. $1.61 (1,000 pcs.) Availability: Now Delivery: 8 weeks ARO For more information, contact Fairchild Semiconductor's Customer Support Center at 888/522-5372, fax 972/910-8036, or visit Fairchild's Web site at www.fairchildsemi.com. Editor's Note: Datasheets in PDF (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. format are available at http://www.fairchildsemi.com/pf/FA/FAN5660.html. For a product photo go to pr@welcomm.com Fairchild Semiconductor International: Fairchild Semiconductor International (NYSE:FCS) is a leading global supplier of high performance products for multiple end markets. With a focus on developing leading edge power and interface solutions to enable the electronics of today and tomorrow, Fairchild's components are used in computing, communications, consumer, industrial and automotive applications. Fairchild's 10,000 employees design, manufacture and market power, analog & mixed signal, interface, logic, and optoelectronics products from its headquarters in South Portland, Maine South Portland is a city in Cumberland County, Maine, United States. As of the 2000 census, the city population was 23,324. Geography South Portland is located at (43.631549, -70.272724)GR1. , and numerous locations around the world. Contact us on the Web at www.fairchildsemi.com. |
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