MAX15026 Low-Cost, DC-DC Synch

MAX15026 Low-Cost, DC-DC Synchronous Controller with Wide Operating Range Delivers Up to 25A

• The MAX15026 is a low-cost, DC-DC synchronous step-down controller capable of driving external MOSFETs to deliver up to 25A of output current.
• An extremely flexible device, the MAX15026 operates over a wide, 4.5V to 28V input range, allowing it to be used in 5V- or 12V-bus applications.
• Additionally, this device allows designers to adjust the switching frequency, compensation, and current limit to optimize their designs for space, performance, and cost.
• Offering excellent performance, the MAX15026 is ideal for high-reliability applications such as telecom, networking, and server equipment. Concurrently, it is cost effective enough to be used in set-top-box and power-module applications.
• MAX15026 pdf

Highly Flexible, Low-Cost, DC-DC Synchronous Controller Delivers Up to 25A

SUNNYVALE, CA—February 12, 2009—Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX15026, a low-cost, DC-DC synchronous step-down controller capable of driving external MOSFETs to deliver up to 25A of output current. This device operates over a wide, 4.5V to 28V input range, and it 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 2MHz), external compensation network, and current limit can also be adjusted to optimize designs for space, performance, and cost. Offering excellent performance, the MAX15026 is ideal for high-reliability applications such as telecom, networking, and server equipment. Concurrently, it is cost effective enough to be used in set-top-box and power-module applications.

The MAX15026 uses cycle-by-cycle lossless current sensing to reduce power loss and eliminate the need for an external sense resistor. Other features include soft-start, an analog-enable input, and a power-good indicator. The device also allows monotonic startup into a prebiased bus without discharging the output.

The MAX15026 is offered in a thermally enhanced, 3mm x 3mm, 14-pin TDFN package, and is fully specified over the -40°C to +85°C extended temperature range. Prices start at $1.10 (1000-up, FOB USA). An evaluation kit is available to speed designs.

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.