New DC/DC Controllers with Integrated Active EMI Filter for Compact Power Supplies
Texas Instruments (TI) introduced a new family of synchronous DC/DC buck controllers that enable smaller power-supply solutions with lower electromagnetic interference (EMI). Featuring an integrated active EMI filter (AEF) and dual-random spread-spectrum (DRSS) technology, the LM25149-Q1 and LM25149 enable designers to cut the area of the external EMI filter in half, lower the conducted EMI of the power design by as much as 55 dBµV across multiple frequency bands, or achieve a combination of reduced filter size and low EMI.
