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参数资料
| 型号： | G2996F1U |
| 厂商： | Global Mixed-mode Technology Inc. |
| 英文描述： | DDR I/II Termination Regulator |
| 中文描述： | 的DDR I / II型终端调节器 |
| 文件页数： | 1/13页 |
| 文件大小： | 289K |
| 代理商： | G2996F1U |
Ver: 2.3
May 16, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G2996
Global Mixed-mode Technology Inc.
DDR I/II Termination Regulator
Features
Operation Supply Voltage: 1.6V to 5.5V
Low Supply Current: 280A @ 2.5V
Low Output Offset
Source and Sink Current
Low External Component Count
No Inductor Required
No external Resistors Required
Thermal Shutdown Protection
Suspend to RAM (STR) function
SOP-8 with Power-Pad package
Applications
DDR-SDRAM Termination Voltage
DDR-I / DDR-II Termination Voltage
SSTL-2
SSTL-3
General Description
The G2996 is a linear regulator designed to meet the
JEDEC SSTL-18 ,SSTL-2 and SSTL-3 (Series Stub
Termination Logic) specifications for termination of
DDR-SDRAM. It contains a high-speed operational
amplifier that provides excellent response to the load
transients. This device can deliver 1.5A/0.9A continu-
ous current and transient peaks up to 3A/1.8A in the
application as required for DDRI/II-SDRAM termination.
With an independent VSENSE pin, the G2996 can pro-
vide superior load regulation. The G2996 provides a
VREF output as the reference for the applications of the
chipset and DIMMs.
The G2996 can easily provide the accurate VTT and
VREF voltages without external resistors that PCB ar-
eas can be reduced. The quiescent current is as low
as 280A @ 2.5V. So the power consumption can
meet the low power consumption applications.
The G2996 also has an active low shutdown (
SD ) pin
that provides Suspend to RAM (STR) functionality.
When SD is pulled low, the VTT output will be tri-state
providing a high impendence, but VREF will remain ac-
tive. A power saving advantage can be obtained in this
mode through lowering the quiescent current to180A
@ 2.5V.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
TEMP.
RANGE
PACKAGE
G2996P1U
G2996P1Uf
G2996
-40°C to 85°C
SOP-8
G2996F1U
G2996F1Uf
G2996
-40°C to 85°C
SOP-8 (FD)
Note: P1:SOP-8
F1:SOP-8(FD)
U: Tape & Reel
(FD): Thermal Pad
Pin Configuration
Typical Application Circuit
VSENSE
8
6
5
1
2
3
4
SD
GND
VTT
PVIN
AVIN
VDDQ
SOP-8
G2996
7
VREF
Thermal
Pad
+
SD
V
REF
V
DDQ
AV
IN
V
SENSE
PV
IN
V
TT
GND
V
TT=1.25V
V
REF=1.25V
V
DDQ=2.5V
V
DD=2.5V
SD
47F
220F
0.01F
VSENSE
8
6
5
1
2
3
4
SD
GND
VTT
PVIN
AVIN
VDDQ
SOP-8
G2996
7
VREF
Thermal
Pad
+
SD
V
REF
V
DDQ
AV
IN
V
SENSE
PV
IN
V
TT
GND
V
TT=1.25V
V
REF=1.25V
V
DDQ=2.5V
V
DD=2.5V
SD
47F
220F
0.01F
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| G2996P1UF | DDR I/II Termination Regulator |
| G2996P1U | DDR I/II Termination Regulator |
| G5105TBU | Low-Noise Step-up DC-DC Converter |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| G2996F1UF | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR I/II Termination Regulator |
| G2996P1U | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR I/II Termination Regulator |
| G2996P1UF | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR I/II Termination Regulator |
| G2997 | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR Termination Regulator |
| G2997B | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR Termination Regulator |
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