LDO basics: Power Supply Rejection Ratio (PSRR) HD

Visit the TI LDO homepage to learn more about the TI LDO Portfolio. http://ti.com/ldo This video will go over what *P*ower *S*upply* R*ejection *R*atio (PSRR) is and will explore an application in which one can calculate the PSRR. The PSRR calculations follows a formula in which one can find the values to the equation either from the electrical characteristics or from the PSRR versus frequency plot provided in the data sheet. The video also highlights the importance of output capacitors and the difference between the input voltage and output voltage as these parameters can affect the PSRR value. Other factors than can influence PSRR value also include noise reduction capacitor, feed-forward capacitor, and PCB layout. Need Help? Visit the support and training tab from the LDO homepage. http://www.ti.com/power-management/linear-regulators-ldo/support-training.html Read the corresponding blog post, LDO Basics: power supply rejection ratio. http://e2e.ti.com/blogs_/b/powerhouse/archive/2017/03/03/ldo-basics-power-supply-rejection-ratio