DDR/DDR2/DDR3 Termination Regulator 3A 4.75V to 5.25V 10-Pin MSOP PowerPAD Tube

The TPS51100 is a 3-A, sink/source tracking termination regulator. The device is specifically designed for low-cost and low-external component count systems where space is a premium.The TPS51100 maintains fast transient response, only requiring 20 µF (2 × 10 µF) of ceramic output capacitance. The TPS51100 supports remote sensing functions and all features required to power the DDR and DDR2 VTT bus termination according to the JEDEC specification. The part also supports DDR3 VTT termination with VDDQ at 1.5 V (typical). In addition, the TPS51100 includes integrated sleep-state controls, placing VTT in Hi-Z in S3 (suspend to RAM) and soft-off for VTT and VTTREF in S5 (suspend to disk). The TPS51100 is available in the thermally efficient 10-pin MSOP PowerPAD package and is specified from –40°C to 85°C.

Input Voltage Range: 4.75 V to 5.25 V

VLDOIN Voltage Range: 1.2 V to 3.6 V

3-A Sink/Source Termination Regulator
Includes Droop Compensation

Requires Only 20-µF Ceramic Output
Capacitance

Supports Hi-Z in S3 and Soft-Off in S5

1.2-V Input (VLDOIN) Helps Reduce Total
Power Dissipation

Integrated Divider Tracks 0.5 VDDQSNS for
VTT and VTTREF

Remote Sensing (VTTSNS)

±20-mV Accuracy for VTT and VTTREF

10-mA Buffered Reference (VTTREF)

Built-In Soft-Start, UVLO, and OCL

Thermal Shutdown

Supports JEDEC Specifications