Features

• VIN Voltage Range: 3 V to 5.5 V

• VLDOIN Voltage Range: 1 V to 3.5 V

• VOUT Minimum Output Voltage: 0.5 V

• Input Voltage Tracking from ½ × REFIN

• 2-A Sink and Source Current Capability for DDR

Termination

• Integrated Power MOSFETs

• Output Remote Sensing

• Fast Load-Transient Response

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

Thermal Shutdown Protection

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

DDR3, and DDR4 VTT Power Supply Applications

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

• Small Package with DFN2×2-10

• Pb−Free and RoHS Compliant

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 the space limitation

becomes higher and higher.

The TPL51206 is a series of 2-A sink and source

DDR termination regulators specifically designed for

DDR applications with heavy space limitations. The

TPL51206 series of devices implements a fast loadtransient

response and only requires a minimum output

capacitance of 10 μF.

The TPL51206 series supports a remote-sensing function

and all power requirements for DDR VTT bus termination.

In addition, the TPL51206 series provides S3 and S5

control pins which can be used to control the power state

in DDR applications, setting OUT to high-impedance in

the S3 state (suspend to RAM) and discharging OUT and

REFOUT in S4 or S5 state (suspend to disk).

The TPL51206 series is available in the thermally efficient

DFN2×2-10 package with the thermal pad and supports

the operating temperature range from −40°C to +125°C.