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Maxim : Step-down controller delivers up to 25 A



Maxim Integrated Products introduces the MAX15023, a low-cost, dual-output, synchronous step-down controller capable of driving external MOSFETs to deliver at least 12A per output. Operating over a wide, 4.5V to 28V input range, this device integrates a ±1% accurate voltage reference to provide an accurate output voltage from 0.6V to 85% of the input voltage. The switching frequency (200kHz to 1MHz), external compensation network, and current limit can also be adjusted to optimize designs in terms of space, performance, and cost. This combination of versatility and performance makes the MAX15023 suitable for a variety of high-reliability applications such as telecom, networking, storage, and server equipment.

The MAX15023 uses cycle-by-cycle lossless current sensing to reduce power loss and eliminate the need for an external sense resistor. Additionally, the device's adaptive synchronization eliminates external freewheeling Schottky diodes. Other features include the ability to start up monotonically when the output has a prebiased voltage; proprietary, adaptive digital soft-start for controlled turn-on; and two independent enable inputs and two independent power-good indicators with precise turn-on/turn-off thresholds, which can be used for supply monitoring and power sequencing.

The MAX15023 is offered in a thermally enhanced, 4mm x 4mm, 24-pin TQFN package, and is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Prices start at $1.76 (1000-up, FOB USA).

An evaluation kit is available to speed designs-contact the factory for details.

Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company reported revenue in excess of $2 billion for fiscal 2008. Maxim was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 5900 products serving the industrial, communications, consumer, and computing markets.

For more information, go to www.maxim-ic.com .

A Data Sheet for this product is available at http://www.maxim-ic.com/MAX15023

Drew Ehrlich
Senior Public Relations Specialist
Maxim Integrated Products
Email:
Phone: 408-331-4252
Fax: 408-331-4132


Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.


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