High-Performance, Dual-Phase, Parallelable, DC-DC Controller with VRM 9.0 VID Programmable Outputs.Business Editors/Technology Writers SUNNYVALE, Calif.--(BUSINESS WIRE)--Sept. 16, 2002 Maxim Integrated Products (Nasdaq:MXIM) introduces the MAX5037 dual-phase, parallelable PWM controller for the design of high-output-current, compact power supplies with minimal external components. The MAX5037's internal voltage regulator allows operation from a 5V, 12V, or 24V power bus. Over 60A output current is achieved by the 4A integrated MOSFET (Metal Oxide Semiconductor Field Effect Transistor) The most popular and widely used type of field effect transistor (see FET). MOSFETs are either NMOS (n-channel) or PMOS (p-channel) transistors, which are fabricated as individually packaged drivers and 2W package power dissipation. Moreover, multiple DC-DC DC-DC Direct Current to Direct Current (power conversion) controller modules can be paralleled to achieve higher output currents in units of 60A per module. The MAX5037's average current-mode control scheme delivers current-limit as well as current-sharing accuracy of +/-5%. This results in small inductor and small (or fewer) external MOSFETs, thus decreasing power-supply size and cost. The +/-5% current-sharing accuracy is maintained between the phases and paralleled modules. In addition, a 180-degree out-of-phase operation reduces input capacitance requirements, further reducing power-supply size and cost. The +/-5% accurate internal 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 frequency is pin selectable at 250kHz or 500kHz per phase, which results in 500kHz or 1MHz effective switching frequency at the output. The MAX5037 includes an on-board 5-bit D/A converter compliant with Intel's VRM 9.0 specifications, which offer VID programmable outputs with +/-0.8% accuracy over the rated operating temperature range. The MAX5037's active adaptive voltage-positioning circuit provides excellent load-transient response, and maximizes efficiency (up to 93%) by reducing power loss in the high-current PC board traces. For added safety, the device includes overvoltage protection, which latches off the top MOSFET and latches on the bottom MOSFET during an output overvoltage condition. Thermal shutdown and a phase failure detector warn the microprocessor of impending im·pend intr.v. im·pend·ed, im·pend·ing, im·pends 1. To be about to occur: Her retirement is impending. 2. power-supply failure if one of the phases fails. Other features include external frequency synchronization, phase-shifted clock output, true differential remote output-voltage sensing, and power-good output. The MAX5037 operates over the -40(degree)C to +85(degree)C temperature range and comes in a 44-pin MQFP See QFP. or 44-pin QFN package. A 52A VRM 9.0 module EV kit (fully compliant with Intel's VRM 9.0 specifications) is available. For a similar part without the 5-bit internal DAC See D/A converter and discretionary access control. DAC - Digital to Analog Converter , refer to the MAX5038 (fixed output voltage version) or the MAX5041 (adjustable output voltage version). Prices start at $2.66 (1000-up, FOB USA). Maxim Integrated Products is a leading international supplier of quality analog and mixed-signal products for applications that require real world signal processing. For more information, contact Maxim at 120 San Gabriel Dr., Sunnyvale, CA 94086. Telephone: 408-737-7600 or our URL URL in full Uniform Resource Locator Address of a resource on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. : www.maxim-ic.com. DATA SHEET: The Data Sheet for this product is available on the web. http://www.maxim-ic.com/MAX5037 GRAPHIC: The graphic for this product is available on the web in three formats: PREVIEW image (smaller image to view in Navigator or Explorer): http://www.maxim-ic.com/PRGraphics/images/PR5037.jpg JPEG JPEG in full Joint Photographic Experts Group Standard computer file format for storing graphic images in a compressed form for general use. JPEG images are compressed using a mathematical algorithm. (300 dpi, high quality, RGB color) http://www.maxim-ic.com/PRGraphics/images/5037.jpg TIFF (300 dpi uncompressed CMYK (Cyan Magenta Yellow blacK) The color space used for commercial printing and most color computer printers. In theory, cyan, magenta and yellow (CMY) can print all colors, but inks are not pure and black comes out muddy. TIF, in a .ZIP archive*) http://www.maxim-ic.com/PRGraphics/images/5037-cmyk-tif.zip |
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