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Global Mixed-mode Technology

G2993 Datasheet Preview

G2993 Datasheet

DDR Termination Regulator

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Global Mixed-mode Technology Inc.
DDR Termination Regulator
G2993
Features
„Operation Supply Voltage: 1.6V to 5.5V
„Low Supply Current: 280µA @ 2.5V
„Low Output Offset
„Source and Sink Current
„Low External Component Count
„No Inductor Required
„No external Resistors Required
„Thermal Shutdown Protection
„SOP-8L package
Applications
„DDR-SDRAM Termination Voltage
„DDR-I / DDR-II Termination Voltage
„SSTL-2
„SSTL-3
General Description
The G2993 is a linear regulator designed to meet the
JEDEC SSTL-2 and SSTL-3 (Series Stub Termination
Logic) specifications for termination of DDR-SDRAM.
It contains a high-speed operational amplifier that pro-
vides excellent response to the load transients. This
device can deliver 1.5A continuous current and tran-
sient peaks up to 3A in the application as required for
DDR-SDRAM termination.
The G2993 can easily provide the accurate VTT volt-
ages without external resistors that PCB areas can be
reduced. The quiescent current is as low as 280µA @
2.5V. So the power consumption can meet the low
power consumption applications.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
G2993P1X
G2993 -40°C to 85°C
Note: X Specify the packing type
U: Tape & Reel
T: Tube
PACKAGE
SOP- 8L
Pin Configuration
Typical Application Circuit
VDDQ 1
AVIN 2
PVIN 3
VTT 4
G2993
SOP-8L
8 GND
7 GND
6 GND
5 GND
VDDQ=2.5V
VDD=2.5V
+
47µF
VDDQ
AVIN
PVIN
VTT
GND
VTT=1.25V
+
220µF
Ver: 1.3
Jan 13, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
1




Global Mixed-mode Technology

G2993 Datasheet Preview

G2993 Datasheet

DDR Termination Regulator

No Preview Available !

www.DataSheet4U.com
Global Mixed-mode Technology Inc.
G2993
Absolute Maximum Ratings (1)
Supply Voltage
PVIN, AVIN, VDDQ to GND……………-0.3V to +6V
Operating Ambient Temperature Range
TA…….…………………………….……...-40°C to +125°C
Maximum Junction Temperature, TJ…..……….….150°C
Storage Temperature Range, TSTG….….-65°C to+150°C
Soldering Temperature, 10seconds, TS……….……260°C
Electrostatic Discharge, VESD
Human body mode..……………………………….2000V(2)
SOP-8L Thermal Resistance (θJA)….………..…50°C/W
Recommend Operation Range
Operating Ambient Temperature Range
TA…………….…………………….………..-40°C to +85°C
AVIN to GND…………………………………1.6V to +5.5V
PVIN, VDDQ to GND.…………………..……1.6V to AVIN
Note:
(1) :Absolute maximum rating indicates limits beyond which damage to the device may occurs.
(2) : Human body model : C = 100pF, R = 1500, 3 positive pulses plus 3 negative pulses
Electrical Characteristics
Specifications with standard typeface are for TA=25°C. Unless otherwise specified, AVIN=PVIN=2.5V,
VDDQ=2.5V
SYMBOL
VTT
PARAMETER
VTT Output voltage
IQ
ZVDDQ
TSD
Quiescent Current
VDDQ input Impedence
Thermal Shutdown
Thermal Shutdown Hystersis
CONDITION
IOUT=0A
VDDQ=2.3V
VDDQ=2.5V
VDDQ=2.7V
IOUT=±1.5A
VDDQ=2.3V
VDDQ=2.5V
VDDQ=2.7V
IOUT=0A
MIN TYP MAX UNIT
1.115
1.215
1.315
1.15
1.25
1.35
1.19
1.29
1.39
V
V
V
1.115
1.215
1.315
120
1.15
1.25
1.35
280
100
150
25
1.19
1.29
1.39
500
V
V
V
µA
K
°C
°C
Ver: 1.3
Jan 13, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
2


Part Number G2993
Description DDR Termination Regulator
Maker Global Mixed-mode Technology
Total Page 10 Pages
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