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The Vicor QPO-2LZ-01 is an output ripple attenuator (SiP) that actively filters supply output ripple and noise (PARD). It provides over 30 dB of PARD attenuation from 1 kHz to 500 kHz and over 20 dB from 50 Hz to 500 Hz. This device filters an input voltage range of 0.3 Vdc to 5.5 Vdc and supports load currents as high as 20 A.
Designed for applications such as distributed point-of-load power systems and sensors requiring low noise power, the QPO-2LZ-01 improves transient response and ensures quiet point-of-load regulation. It features a user-selectable performance optimization for attenuation, power dissipation, and transient load response. The attenuator is housed in a low-profile 25 x 25 x 4.5 mm LGA package, suitable for surface mounting.
With 90-95% efficiency, this ripple attenuator can reduce the required number of output capacitors for dynamic loads. It operates with a VAUX input range of 7 V to 12 V, requiring a minimum difference of 7 V between VAUX and QPO OUT.
The QPO-2LZ-01 provides over 30 dB of PARD attenuation from 1 kHz to 500 kHz, and over 20 dB from 50 Hz to 500 Hz.
The QPO-2LZ-01 filters an input voltage range of 0.3 Vdc to 5.5 Vdc.
The QPO-2LZ-01 supports load currents as high as 20 A.
The QPO-2LZ-01 is a 25 x 25 x 4.5 mm SiP (System-in-a-Package) with a low profile LGA package.
The efficiency is 90-95% with load vs. headroom trim.