Himalaya step-down DC/DC converters aid safety industrial applications

Two step-down DC/DC converters from Maxim Integrated enable rapid compliance of safety standards for industrial applications. The MAX17572 and MAX17574 reduce power dissipation by 40 per cent and overall size by 50 per cent, claims the company.

System architects can use the MAX17572 and MAX17574 Himalaya synchronous step-down DC-DC converters to rapidly comply with international electro-technical commission (IEC) and safety integrated level (SIL) standards. The converters provide a 40 per cent reduction in power dissipation and shrink solution size by 50 per cent, compared to other solutions currently available, claims Maxim.

The industrial market is rapidly digitising and, at the same time, continually improving the safety, performance, and intelligence of systems. To deploy processors from sensors to control units, designers must reduce power dissipation while managing space constraints. They also face thermal challenges and meeting safety standard regulations to ensure robust, long-term reliability, even though these tasks are very time consuming. In addition, designers must account for high voltage transients up to 60V on a 24 or 48V bus.

With Maxim’s MAX17572 and MAX17574 DC/DC converters, designers can operate 4.5 to 60V as well as reduce power dissipation and solution size compared to other solutions to rapidly comply with the IEC 61508 safety standard. The converters guarantee 1.0 and 3.0A operation (5.0V output). They are suitable for high voltage industrial applications such as sensors, programmable logic controllers (PLCs), industrial controls, distributed supply regulation, and factory/building/power grid automation. They are also applicable for battery back-up, Power-over-Ethernet (PoE), and data centres.

Operating over the -40 to +125 degree C temperature range, the MAX17572 is available in a 12-pin, 3.0 x 3.0mm thin-DFN (TDFN) package and the MAX17574 is available in a 24-pin, 4.0 x 5.0mm TQFN package.

Evaluation kits are available – the MAX17572EVKITA#, MAX17572EVKITB#, MAX17574EVKITA#, MAX17574EVKITB#.



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