2A DDR BUS TERMINATION REGULATOR

DESCRIPTION

The UR5513 is a sink/source tracking termination regulator. The

UR5513 possesses ahigh speed operating amplifier that provides

fast load transient response and only requires a minimum 30uF

ceramic output capacitor. The UR5513 supports remote sensing

functions and all features required to power the DDRIII and Low

Power DDRIII/DDRIV VTT bus termination. In addition , the UR5513

Provides an open-drain PGOOD signal to monitor the output

regulation and an EN signal that can be used to discharge VTT

during S3(suspent to RAM) for DDR applications.

FEATURES

* VCNTL Voltage Range: 2.9~5.5V

* VIN Voltage Range: 1.1V~3.5V

* Support Ceramic Capacitors

* Power Good Indicator

* DDRIII,Low Power DDRIII/DDRIV VTT Applications

* 2A Source/Sink VTT output

* 10mA Source/Sink Reference output

* Soft-start Function

* UVLO and OCP Protection

* Thermal Shutdown Protection