General Description

The RT9094A is a very low dropout linear regulator which

operates from input voltage as low as 0.8V. The device

capable of supplying 2A of output current with a typical

dropout voltage of only 100mV. A VBIAS supply is required

to run the internal reference and LDO circuitry while output

current comes directly from the VIN supply for high

efficiency regulation. User-programmable soft-start limits

the input inrush current and minimizes stress on the input

power. The enable input and power good output allow easy

sequencing with external regulators. This complete

flexibility provides an easy-to-use robust power

management solution for a wide variety of applications.

The RT9094A is stable with output capacitor greater than

or equal to 2.2μF. A precise reference and error amplifier

deliver 2 accuracy over load, line and temperature. Overcurrent

limit and over-temperature protection are also

included. The RT9094A is available in the WDFN-10L 3x3

package.

Applications

? PCs, Servers, Modems, and Set-Top-Boxes

? FPGA Applications

? DSP Core and I/O Voltages

? Instrumentation

? Post-Regulation Applications

? Applications With Sequencing Requirements

Features

? Ultralow VIN Range : 0.8V to 5.5V

? VBIAS Voltage Range : 2.7V to 5.5V

? VOUT Voltage Range : 0.8V to 3.6V

? Low Dropout : 100mV Typ. at 2A, VBIAS = 5V

? 2 Accuracy Over Line/Load/ Temperature

? PGOOD Indicator for Easy Sequence Control

? Programmable Soft-Start Provides Linear Voltage

Startup

? Stable with Any Output Capacitor ≥ 2.2μF

? Over-Current and Over-Temperature Protection