LTM8057 and LTM8058 are 1.5W output µModule DC/DC converters with 2 kVAC galvanic isolation (production tested to 3 kVDC) in a 9 x 11.25 x 4.92 mm BGA package.
LTM8057 and LTM8058 include an isolated transformer, control circuitry, power switches and a modest amount of input and output capacitance. These µModule converters are UL60950 recognised components. Both devices operate from an input voltage range of 3.1V to 31V, delivering a regulated output voltage on the secondary side, adjustable from 2.5V to 12V (LTM8057) and 1.2V to 12V (LTM8058).
The LTM8058 includes a low-noise linear post regulator that reduces the output ripple to 20 µVRMS at 300 mA. Creepage and clearance distances support a working voltage up to 250V in a pollution degree 2 environment for breaking ground loops in testers, servers, industrial automation, control and servo systems.
The LTM8057 maintains output voltage regulation accuracy of ±5% from -40°C to +125°C. The LTM8058’s linear post regulator improves output voltage regulation to ±2.5% over the same temperature range. Additionally, the post regulator provides low output ripple noise, improving the performance of high accuracy mixed signal converters and precision operational amplifiers. High DC/DC conversion efficiency and package design support full output power at ambient temperatures up to 110°C.
The LTM8057 and LTM8058 are available in three temperature grades, E and I from -40°C to +125°C and MP for the -55°C to +125°C operating junction temperature range. Pricing starts at $10.90 and $11.45 each (1,000) for the LTM8057 and LTM8058, respectively.
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