2.2MHz, Dual-Output DC-DC Converters with 80V Load-Dump Protection Are Ideal for Automotive Applications
Note to Editor:
- The MAX5098A/MAX5099 are 2.2MHz, dual-output, high-switching-frequency DC-DC converters capable of delivering 2A and 1A of output current.
- These devices integrate load-dump protection circuitry for handling battery voltages up to 80V, and they operate down to 4.5V to withstand cold-crank conditions.
- The high switching frequency allows these devices to operate outside of the AM band, making the MAX5098A/MAX5099 ideal for use in infotainment systems, instrument-cluster displays, and head units.
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SUNNYVALE, CA—August 11, 2008—Maxim Integrated Products (PINK OTC MARKETS: MXIM) introduces the MAX5098A/MAX5099 dual-output, high-switching-frequency DC-DC converters capable of delivering 2A and 1A of output current. Designed to operate directly from a car battery, these converters integrate load-dump protection circuitry to handle transients up to 80V, and they operate down to 4.5V to withstand cold-crank conditions. Additionally, these devices feature a wide, 200kHz to 2.2MHz, programmable switching-frequency range, thus allowing them to operate outside of the AM radio band. The robust protection features and wide switching-frequency range make the MAX5098A/MAX5099 ideal for automotive applications such as head units, instrument-cluster displays, and car radios.
These DC-DC converters can operate 180° out-of-phase with an adjustable switching frequency. This capability minimizes external component count while allowing the designer to make trade-offs between size, efficiency, and cost. In addition, the MAX5098A/MAX5099 utilize voltage-mode control for stable operation and external compensation so that the loop gain is tailored to optimize component selection and transient response. Integrating an n-channel MOSFET that can be used in a high-side or low-side configuration, these devices can be configured either as boost or buck converters. The MAX5099 also integrates two low-side MOSFET drivers for synchronous operation.
The MAX5098A/MAX5099 are available in a thermally enhanced, 5mm x 5mm, 32-pin TQFN package with an exposed pad, and they are fully specified over the -40°C to +125°C automotive temperature range. Prices start at $2.59 (1000-up, FOB USA).
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells over $2 billion of high-performance semiconductor products annually. It 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, Maxim has developed over 5700 products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-ic.com.
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