Power Electronics / Power Management


Non-isolated buck regulator

14 May 2014 Power Electronics / Power Management

ZMDI has announced the release of an energy-efficient DC/DC regulator for non-isolated step-down (buck) applications. The ZSPM4023 is a single-phase regulator with integrated driver and power FETs, capable of leveraging a wide input voltage range and supporting up to 12 A output current.

The device provides high-efficiency DC/DC conversion for all load ranges, with the capability to automatically run in continuous or discontinuous modes based on load requirements. High efficiency at low load is accomplished by supporting discontinuous mode operation in which the regulator shuts down all non-essential circuits and minimises the supply current draw. During discontinuous mode, the total power supply current is only 450 μA.



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