QPO

Active output ripple attenuator

This family of products are End of Life. Please use the Power System Designer tool to find a product for your project.

The QPO output ripple attenuator products use proprietary active filtering to reduce power supply output ripple and noise (PARD) over 30dB from 1kHz. QPOs improve transient response, ensure quiet point-of-load regulation and works with most DC-DC converters and switching power supplies. Output regulation is maintained using remote sensing or the trim input of the power supply.

Features and benefits

Reduces power supply output ripple to less than 10mV_P-P

Greater than 30dB PARD attenuation from 1 to 500kHz

Greater than 99% efficient

Improves transient response of DC-DC converters

Resources for the design engineer

QPO-2-EVAL1 User Guide — User Guide
QPO-2-EVAL1

Image of scope shot — White Paper
Reduce load capacitance in noise-sensitive, high-transient applications, through implementation of active filtering

On-Demand Webinar

High‑performance PCB layout and thermal design

On-Demand Webinar

Modular DC-DC system design done right

Reduce load capacitance in noise-sensitive, high transient applications, through implementation of active filtering

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