TPS51206 Datasheet, PDF (1/23 Pages) Texas Instruments – 2-A Peak Sink/Source DDR Termination Regulator with VTTREF Buffered Reference

TPS51206
www.ti.com
SLUSAH1 – MAY 2011
2-A Peak Sink/Source DDR Termination Regulator with VTTREF Buffered Reference For
DDR2, DDR3 and DDR3L
Check for Samples: TPS51206
FEATURES
1
•2 Supply Input Voltage: Supports 3.3-V Rail and
5-V Rail
• VLDOIN Input Voltage Range: VTT+0.4 V to
3.5 V
• VTT Termination Regulator
– Output Voltage Range: 0.5 V to 0.9 V
– 2-A Peak Sink and Source Current
– Requires Only 10-μF MLCC Output
Capacitor
– ±20 mV Accuracy
• VTTREF Buffered Reference
– VDDQ/2 ± 1% Accuracy
– 10-mA Sink/Source Current
• Supports High-Z in S3 and Soft-Stop in S4/S5
with S3/S5 Inputs
• Over Temperature Protection
• 10-pin 2mm x 2mm SON(DSQ) Package
APPLICATIONS
• DDR2/DDR3/DDR3L Memory Power Supplies
• SSTL_18, SSTL_15, SSTL_135 and HSTL
Termination
DESCRIPTION
The TPS51206 is a sink/source double date rate
(DDR) termination regulator with VTTREF buffered
reference output. It is specifically designed for low
input voltage, low cost, low external component count
systems where space is a key consideration. The
TPS51206 maintains fast transient response and only
requires 1 × 10-µF of ceramic output capacitance.
The TPS51206 supports a remote sensing function
and all power requirements for DDR2, DDR3 and
Low-Power DDR3 (DDR3L) VTT bus. The VTT
current capability is ±2A peak. The TPS51206
supports all of the DDR power states, putting VTT to
High-Z in S3 state (suspend to RAM) and discharging
VTT and VTTREF in S4/S5 state (suspend to disk).
The TPS51206 is available in 10-pin, 2x2, SON
(DSQ) PowerPAD™ package and specified
from –40°C to 85°C.
VDDQ
S3_SLP
S5_SLP
5 V or 3.3 V
Supply
SIMPLIFIED APPLICATION
TPS51206
1 VDDQSNS VTT 3
2 VLDOIN VTTSNS 5
PGND 4
7 S3
VTTREF 6
9 S5
GND 8
10 VDD
PowerPad
VTT
VTTREF
UDG-11024
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated