TPS51123A Datasheet (Texas Instruments)

TPS51123A, Step-Down Controller

The TPS51123A is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions.

It provides 5-V and 3.3-V LDOs and requires few external components.

The TPS51123A supports high-efficiency, fast transient responses and provides a combined power-good signal.

TPS51123A Features

* 1

* 2 Wide-Input Voltage Range: 5.5 V to 28 V

* Output Voltage Range: 2 V to 5.5 V

* Built-in 100-mA 5-V/3.3-V LDO with Switches

* Built-in 1% 2-V Reference Output

* With/Without Out-of-Audio™ Mode Selectable Light-Load and PWM-Only Operation

* Internal