High-efficiency convertors mount the 48V power bus

New single output, high efficiency DC/DC convertors from Ultimate Renaissance (UR) are built to the industry-standard half-brick format for shelf-mounted applications from 99 to 150W.

New single output, high efficiency DC/DC convertors from Ultimate Renaissance (UR) are built to the industry-standard half-brick format for shelf-mounted applications from 99 to 150W.

The LT150 series convertors, developed by Lariteck, feature wide input voltage range, from 36-75V, to satisfy diverse applications including 48V SELV bus systems such as telecomms equipment and data storage arrays.

The full range of LT150 variants deliver a single isolated DC output of 3.3 or 5V at 30A, up to 24V at 6.25A, with 12 and 15V DC 150W options also available.

Output accuracy is +/-1%, and the output level is trimmable via an external potentiometer connected across the unit's trim and sense terminals.

Line regulation and load regulation are each +/-0.2%, and transient response is less than 500ms under 25% step load change conditions.

The specification also includes continuous short circuit protection, with current limiting at 110% - 140% of nominal output line.

Overvoltage protection is included, adjustable to trip at 115-140% of the nominal output level.

Thermal shutdown is set at 100C case temperature.

Operating at 500kHz switching frequency, LT150 convertors achieve efficiency up to 85%.

The unit is supplied in a five-sided aluminium case, with input-output, input-case and output-case isolation to 1500V DC.

Case dimensions are 57.9 x 61.0 x 12.7mm in line with the standard half brick dimensions.

Back to top