Features

• VIN Voltage: Support 2.5-V, 3.3-V and 5-V Power Rails

• VLDOIN Voltage Range: 1.1 V to 3.5 V

• Flexible Input Voltage Tracking Directly from REFIN or

through External Resistor Divider

• 3-A Sink and Source Current Capability for DDR

Termination

• Integrated Power MOSFETs

• Output Remote Sensing

• Fast Load-Transient Response

• Open-Drain Power Good to Monitor OUT Regulation

• Built in Soft-Start and UVLO, Current Limit and

Thermal Shutdown Protection

• Support DDR, DDR2, DDR3, DDR3L, Low Power

DDR3, and DDR4 VTT Applications

• Operating Temperature Range: –40°C to +125°C

• Small Package with DFN3x3-10

• Pb−Free and are RoHS Compliant

• Qualified for Automotive Applications with AEC-Q100

Reliability Test

• Industrial and Automotive Temperature Range

Applications

• Memory VTT Regulator for DDR, DDR2, DDR3,

DDR3L, Low Power DDR3, and DDR4

• Notebooks, Desktops, and Workstations

• Servers, Networking equipment and Datacenters

• Telecom and Base Station

Description

With the development of main processors in PCs and

servers, more and more source double-data-rate (DDR)

memories are required in the mainboard, where the input

voltage becomes lower and lower, and space limitation

becomes higher and higher.

The TPL51200 series of devices are 3-A sink and

source DDR termination regulators specifically designed

for the DDR applications with heavy space limitation.

The TPL51200 series of devices implement a fast loadtransient

response and only require a minimum output

capacitance of 20 μF.

The TPL51200 series of devices support a remote-sensing

function and all power requirements for DDR VTT bus

termination. In addition, the TPL51200 series of devices

provide an open-drain PG signal for VTT regulation

indication and an EN signal that can be used to discharge

VTT for DDR applications.

The TPL51200 series of devices are available in the

thermally efficient DFN3x3-10 package with a thermal pad,

and support the operating temperature range from –40°C

to +125°C.