TPS54120 Datasheet (Texas Instruments)

TPS54120, 1-A Power Supply

The TPS54120 combines the high-efficiency of a step-down switching (dc-dc) converter with a high power-supply rejection (PSR), low-noise, low-dropout regulator (LDO) to provide an ultra low-noise power supply that delivers quiet power rails to noisesensitive applications.

With a wide input range of

TPS54120 Features

* 1

* Low-Noise Output: 17 µVRMS at 100 Hz to 1 MHz

* Wide Input Voltage Range: 4.5 V to 17 V

* High Efficiency: 72% at 1 A, 12V Input

* Excellent Load/Line Transient Response

* Synchronizable to External Clock: 200 kHz to 1.2 MHz

* Small Package: 3.5 mm