Home > Low-cost ‘quarter-brick’ dc/dc converter

Low-cost ‘quarter-brick’ dc/dc converter

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DATEL's new ULQ series "Quarter-Brick" dc/dc converters, available from Fairmont Marketing , are suitable for applications requiring improved electrical and thermal performance at reduced cost.

From an 18-36V or 36-75V input, ULQ's deliver outputs of 1.2, 1.5, 1.8, or 2V fully rated at 15 or 25A and 2.5 or 3.3V at 15 or 20A.

They simultaneously achieve ultra-high efficiency (to 91%), tight line/load regulation (±0.125/0.5%), low noise (25-75mVp-p), and quick step response (200μsec).

A state of the art, single board, open-frame design with reduced component count, high efficiency, low-on resistance FETs and planar magnetics embedded in heavy-copper PC boards all contribute to impressive thermal derating.

The ULQ's feature set includes high isolation (2250V dc), input pi filters, input undervoltage shutdown, output overvoltage protection, current limiting, short-circuit protection and thermal shutdown.

The standard footprint carries on/off control (positive or negative polarity), output trim (+10/-20%) and output sense functions. They measure just 36.8 x 58.4 x 8.9mm and fit the industry-standard footprint.

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