Date: 29/10/2012

Enhance signal quality in your circuit by using ripple blocker chip

Are you designing high performing audio and video player/capture system or a sensitive signal processing device, then you must have blamed the power supply ripple for hampering the performance of device. There is a simple solution from Micrel to block the ripple to maximum extent. Micrel employs in its power supply ICs active filter technology to attenuate high frequency ripple noise.

The power ICs made by Micrel featuring ripple blocker technology includes:

MIC94300 - Ripple Blocker Load Switch
MIC94305 - 500mA Switch
MIC94310 - Ripple Blocker DC-DC Regulator
MIC94325 - 500mA LDO with Ripple Blocker
MIC94345 - 500mA LDO with Ripple Blocker
MIC94355 - 500mA LDO with Ripple Blocker

These ICs feature 80dB PSRR at 1kHz, 60dB PSRR at 5MHz.

The suggested applications include: Medical imaging, Tablet PCs, notebooks and, webcams, digital still and video cameras, Videoconferencing, Bar code scanners, Smart phone cameras and RF stages, Global Positioning Systems (GPS) and Automotive and industrial applications.