Noise reduction due to high ripple rejection ratio

Ripple Rejection Characteristics (PSRR)

It is also called PSRR (Power Supply Rejection Ratio). The ripple rejection ratio is the ratio of the ripple voltage that appears on the output voltage when the ripple voltage component (noise) is superimposed on the input voltage to the input ripple voltage. The larger this value, the smaller the ripple component that appears in the output. The Toshiba LDO regulator achieves high ripple compressibility over a wide frequency range through ultra-high-speed feedback circuit technology.

Digital/analog core power supplies such as CMOS image sensors, MCUs, and RFs, may cause malfunction or performance degradation due to external noises. Therefore, we need to be able to remove switching noise from DC-DC converters etc. of external power supplies, which are sources of noise. In other words, we need to have a higher ripple rejection ratio. In addition to the low-frequency range from DC to 1 kHz, our LDO regulator has a high ripple removal capability up to a high-frequency range from 100 kHz to several MHz, and can be used as a high-quality power supply with low noise.

High ripple rejection LDO regulators

Contacts

Technical inquiry

Contact us

Contact us

Frequently Asked Questions

FAQs

Queries about purchasing, sampling and IC reliability

Stock Check & Purchase

keyword:

Disclaimer for External Link
Through this website you are able to proceed to the website of our distributors ("Third Party Website") which is not under the control of Toshiba Corporation and its subsidiaries and affiliates (collectively "Toshiba"). The Third Party Website is made available to you as a convenience only and you agree to use the Third Party Website at your own risk. The link of the Third Party Website does not necessarily imply a recommendation or an endorsement by Toshiba of the Third Party Website. Please be aware that Toshiba is not responsible for any transaction done through the Third Party Website, and such transactions shall be subject to terms and conditions which may be provided in the Third Party Website.
A new window will open