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DC/DC converters boast 1.5W output power

14 Dec 2011

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Linear Technology Corp. has rolled out a pair of buck regulators designed for industrial, avionics and instrumentation equipment. According to the company, the LTM8047 and LTM8048 1 DC/DCµmodule converters are 725VDC isolation tested and deliver 1.5W output power. All components, including the transformer, control circuitry and power switches are housed in an enclosed 9x11.25x4.92mm BGA package for interconnect reliability in high vibration applications.

Both devices operate from an input voltage of 3.1V to 32V, delivering a regulated output voltage on the secondary side, adjustable from 2.5V to 12V (LTM8047) and 1.2V to 12V (LTM8048). The LTM8048 includes a low noise linear post regulator that reduces the output ripple noise to 20µVrms at 300mA.

The LTM8048's isolated post regulator delivers an output voltage accuracy of 2.5 percent. The low noise performance of the LDO delivers a clean supply rail, improving the performance of high accuracy mixed signal converters. Additional features available on both products include overcurrent protection and adjustable soft start.

The LTM8047 and LTM8048 are available for immediate delivery from stock in three temperature grades: E and I from -40°C to 125°C and MP for the -55°C to 125°C. Pricing starts at $8.25 and $8.75 each for 1,000-piece quantities for the LTM8047 and LTM8048, respectively.

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