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G2993 Datasheet

  • G2993

  • DDR Termination Regulator|Terminator Series

  • 10頁

  • ETC

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Global Mixed-mode Technology Inc.
G2993
DDR Termination Regulator
Features
Operation Supply Voltage: 2V to 5.5V
Low Supply Current: 230碌A @ 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
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 V
TT
volt-
ages without external resistors that PCB areas can be
reduced. The quiescent current is as low as 230碌A @
2.5V. So the power consumption can meet the low
power consumption applications.
Applications
DDR-SDRAM Termination Voltage
DDR-I / DDR-II Termination Voltage
SSTL-2
SSTL-3
Ordering Information
ORDER
NUMBER
G2993P1X
MARKING
G2993
TEMP.
RANGE
-40擄C to 85擄C
PACKAGE
SOP- 8L
Note: X Specify the packing type
U: Tape & Reel
T: Tube
Pin Configuration
Typical Application Circuit
G2993
VDDQ
AVIN
PVIN
VTT
1
2
3
4
8
7
6
5
GND
GND
GND
GND
47碌F
+
V
DDQ
=2.5V
V
DD
=2.5V
V
DDQ
AV
IN
PV
IN
GND
V
TT
+
V
TT
=1.25V
220碌F
SOP-8L
Ver: 1.0
May 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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