Power filter cleans up low-voltage supplies

North Smithfield, RI – Picor’s QPO-2 System-in-a-Package is an active power filter that reduces a supply’s output ripple and noise (also called periodic and random deviation, PARD) by more than 30 dB from 1 kHz to 500 kHz. Inserted between the output of a 0.3- to 5.5-volt supply and the load, the QPO-2, which handles up to 20 amps, improves transient response and ensures quiet point-of-load regulation when used with most switching power supplies. It’s particularly suited to applications in test and measurement, distributed point-of-load power systems, sensors requiring low-noise power, and medical instrumentation.