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参数资料
| 型号： | G2997 |
| 厂商： | Global Mixed-mode Technology Inc. |
| 英文描述： | DDR Termination Regulator |
| 中文描述： | DDR终端稳压器 |
| 文件页数： | 1/10页 |
| 文件大小： | 597K |
| 代理商： | G2997 |
Ver: 1.1
Jul 06, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G2997
Global Mixed-mode Technology Inc.
DDR Termination Regulator
Features
Support Both DDR I (1.25VTT) and DDR II
(0.9 VTT) Requirements
Input Voltage Range: 3.3V to 5.5V
VLDOIN Voltage Range: 1.2V to 3.6V
Requires Only 20F Ceramic Output Capaci-
tance
Supports High-Z in S3 and Soft-Off in S5
Integrated Divider Tracks 1/2 VDDQSNS for
Both VTT and VTTREF
Remote Sensing (VTTSNS)
±20mV Accuracy for VTT and VTTREF
10mA Buffered Reference (VTTREF)
Built-In Soft-Start
Over Current Protection
Thermal Shutdown Protection
MSOP-10 and MSOP-10(Exposed Pad) Package
Applications
DDR I/II Memory Termination
SSTL2, SSTL18
HSTL Termination
General Description
The G2997 is a 3A sink/source tracking termination
regulator. It is specifically designed for low-cost/
low-external component count systems. The G2997
maintains a high speed operational amplifier that pro-
vides fast load transient response and only requires
20F (2x10F) of ceramic output capacitance. The
G2997 supports remote sensing functions and all fea-
tures required to power the DDR I / DDR II VTT bus
termination according to the JEDEC specification. In
addition, the G2997 includes integrated sleep-state
controls placing VTT in High-Z in S3 (suspend to RAM)
and soft-off for VTT and VTTREF in S5 (Shutdown).
The G2997 is available in the thermally efficient 10pin
MSOP and MSOP (Exposed PAD).
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Pb free)
G2997P7U
G2997
-40°C~85°C
MSOP-10
G2997F6U
G2997
-40°C~85°C
MSOP-10 (FD)
Note: P7: MSOP-10
F6: MSOP-10 (FD)
U: Tape & Reel
(FD): Thermal Pad
Pin Configuration
Typical Application Circuit
VDDQSNS
VIN
VLDOIN
VTT
GND
PGND
S3
S5
VIN=5V
2*10F
VTTSNS VTTREF
S5
2.5V
S3
S5
1
2
3
4
5
VDDQSNS
VLDOIN
PGND
VTTSNS
VTT
10
9
8
7
6
GND
S3
VIN
MSOP-10
VTTREF
G2997
Thermal
Pad
Top View
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
0.1F
C2
C1
VDDQSNS
VIN
VLDOIN
VTT
GND
PGND
S3
S5
VIN=5V
2*10F
VTTSNS VTTREF
S5
2.5V
S3
S5
1
2
3
4
5
VDDQSNS
VLDOIN
PGND
VTTSNS
VTT
10
9
8
7
6
GND
S3
VIN
MSOP-10
VTTREF
G2997
Thermal
Pad
Top View
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
0.1F
C2
C1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| G2997B | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR Termination Regulator |
| G2997F6U | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR Termination Regulator |
| G2997P7U | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:DDR Termination Regulator |
| G29AH | 功能描述:SW TOGGLE DPDT MOM RT ANGLE PC RoHS:是 类别:开关 >> 拨动开关 系列:G 标准包装:1 系列:A 电路:双刀双掷 开关功能:开-开-开 触点额定电压:6A @ 125VAC 触动器类型:扁平型 触动器长度:11.38mm 发光:不发光 安装类型:面板安装 端接类型:焊片 轴衬螺纹:1/4-40 包装:散装 |
| G29AH-RO | 功能描述:拨动开关 ON-OFF-(ON) DPDT RoHS:否 制造商:C&K Components 触点形式:DPDT 开关功能:ON - ON - ON 电流额定值: 电压额定值 AC:20 V 电压额定值 DC:20 V 功率额定值:0.4 VA 端接类型:V-Bracket 安装风格: 端子密封:Epoxy 触点电镀:Gold 照明:Not Illuminated |
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