MP20073 Datasheet, PDF (1/11 Pages) Monolithic Power Systems – 2A, 1.3V.6.0V DDR Memory Termination Regulator

The Future of Analog IC Technology
MP20073
2A, 1.3V–6.0V
DDR Memory Termination Regulator
DESCRIPTION
The MP20073 integrates the DDR memory
termination regulator with the output voltage
(VTT) and a buffered VTTREF outputs is a half
of VREF.
The VTT-LDO is a 2A sink/source tracking
termination regulator. It is specifically designed
for low-cost/low-external component count
systems, where space is a premium.
The MP20073 maintains a fast transient
response only requiring 20µF (2x10µF) of
ceramic output capacitance. The MP20073
supports Kelvin sensing functions.
The MP20073 is available in the 8-pin MSOP
with Exposed PAD package and is specified
from -40^oC to 85^oC.
FEATURES
 VDDQ Voltage Range: 1.3V to 6.0 V
 Up to 2A Integrated Sink/Source Linear
Regulator with Accurate VREF/2 Divider
Reference for DDR Termination
 Requires Only 20µF Ceramic Output
Capacitance
 Drive Voltage : 3.3V
 1.3V Input (VDDQ) Helps Reduce Total
Power Dissipation
 Integrated Divider Tracks VREF for VTT
and VTTREF
 Kelvin Sensing (VTTSEN)
 ±30mV Accuracy for VTT and VTTREF
 Built-In Soft-Start, UVLO and OCL
 Thermal Shutdown
APPLICATIONS
 Notebook DDR2/3 Memory Supply and
Termination Voltage in ACPI Compliant
 Active Termination Busses
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VDDQ
R3
20
3.3V
EN
R2
100k
1
DDQ
6
8
REF
VTTREF
MP20073
5
VDRV
4
VTTSEN
7
VTTEN
GND
3
2
VTT
VTTREF
VTT
C9
NC
MP20073 Rev. 1.0
www.MonolithicPower.com
1
10/16/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.