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Automotive PMIC cuts noise, power consumption

20 Feb 2014

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Maxim Integrated Products Inc. has uncloaked the MAX16993 PMIC that allows engineers to design automotive clusters that are smaller, quieter and more efficient According to the company, under no-load conditions, the MAX16993 is the only 3-channel solution on the market that consumes just 25uA of quiescent current, making the device more efficient than traditional DC-DC converters, which often run on several milliamps.

Automotive OEMs often limit instrument cluster module consumption to less than 100uA in standby mode. Given all the functions that the instrument cluster performs, the power supply itself must consume only a tiny portion of the power budget. Additionally, because the MAX16993 integrates a high-switching-frequency controller and two output converters capable of 3A each, it saves over 50 percent board space compared to traditional discrete solutions. The device's 2.1MHz frequency improves AM band noise avoidance and keeps the external inductors and capacitors small. The MAX16993 is geared for automotive instrument clusters and infotainment applications.

The MAX16993 is available in a 5 x 5 x 0.75mm, 32-pin TQFN-EP and a 5 x 5 x 0.8mm, side-wettable QFND-EP package. The device is AEC-Q100 qualified and operates from -40°C to 125°C automotive temperature range. Pricing starts at $5.39 (1000-up, FOB USA).

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