TI claims the regulator reduces noise by up to 99% compared to other solutions, without compromising efficiency or power performance. It maintains a high power-supply rejection ratio (PSRR) of 83db at 10kHz and 70dB at 100kHz. Input voltage ranges from 4.5V to 17V with an adjustable output of 0.8V to 6.0V. In addition, it’s synchronisable to an external clock between 200 kHz and 1.2MHz.
The TPS54120 comes in a thermally enhanced 4mm by 4mm, 20-pin QFN or TSSOP package.