TI TPS54120RGYT

降压（1），线性（LDO）（1）20.8V ~ 6V，1A2.2V ~ 17V

Overview

The TPS54120RGYT 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 noise-sensitive applications.

The device is available in a space-saving, 3.5-mm × 5.5-mm QFN package, and is specified to operate over a –40°C to +125°C junction temperature range.

Features

• Low-Noise Output: 17 μV_RMS 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 x 5.5 mm QFN-24

Applications

• Telecom Infrastructure

• Pico and Femto Base Stations

• Powering Sensitive Clocking Distribution Circuits

• Test and Measurement

• Powering RF Components: VCOs, Receivers, ADCs

• Professional Audio