TPS51125 Datasheet - Texas Instruments

TPS51125 Step-Down Controller

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltag.

TPS51125 Features

* 1 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 and 3.3-V LDO With Switches

* Built-In 1% 2-V Reference Output

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

* In

TPS51125-etcTI.pdf