TPS5110 Datasheet, PDF (1/18 Pages) Texas Instruments – 3-A SINK/ SOURCE DDR TERMINATION REGULATOR

TPS51100
SLUS600B − APRIL 2004 − REVISED NOVEMBER 2005
3ĆA SINK/SOURCE DDR
TERMINATION REGULATOR
FEATURES
D Input Voltage Range: 4.75 V to 5.25 V
D VLDOIN Voltage Range: 1.2 V to 3.6 V
D 3-A Sink/Source Termination Regulator
Includes Droop Compensation
D Requires Only 20-µF Ceramic Output
Capacitance
D Supports High-Z in S3 and Soft-Off in S5
D 1.2-V Input (VLDOIN) Helps Reduce Total
Power Dissipation
D Integrated Divider Tracks !/2VDDQSNS for
VTT and VTTREF
D Remote Sensing (VTTSNS)
D ± 20-mV Accuracy for VTT and VTTREF
D 10-mA Buffered Reference (VTTREF)
D Built-In Soft-Start, UVLO and OCL
D Thermal Shutdown
D Supports JEDEC Specifications
APPLICATIONS
D DDR, DDR2 Memory Termination
D SSTL−2, SSTL−18 and HSTL Termination
TPS51100DGQ
1 VDDQSNS VIN 10
C1
2 y 10 µF
2 VLDOIN
3 VTT
S5 9
GND 8
4 PGND
S3 7
5 VTTSNS VTTREF 6
5V_IN
S5
C2
0.1 µF
S3
VTTREF
DESCRIPTION
The TPS51100 is a 3-A sink/source tracking
termination regulator. It is specifically designed for
low-cost/low-external component count systems,
where space is a premium.
The TPS51100 maintains fast transient response
only requiring 20-µF (2 × 10µF) 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. In addition,
the TPS51100 includes integrated sleep-state
controls placing VTT in High-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
and is specified from −40°C to 85°C.
ORDERING INFORMATION
TA
PLASTIC MSOP POWER PAD
(DGQ)⁽¹⁾
−40°C to 85°C
TPS51100DGQ
(1) _{The DGQ package is also available taped and reeled. Add}
an R suffix to the device type (i.e., TPS51100DGQR). See
the application section of the data sheet for PowerPAD
drawing and layout information.
Cap Manuf Part Number
C1 TDK C2012JB0J106K
C2 TDK C1608JB1H104K
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
UDG−04015
www.ti.com
Copyright  2004, Texas Instruments Incorporated
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