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G2997のメーカーはGlobal Mixed-mode Technologyです、この部品の機能は「DDR Termination Regulator」です。 |
部品番号 | G2997 |
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部品説明 | DDR Termination Regulator | ||
メーカ | Global Mixed-mode Technology | ||
ロゴ | |||
このページの下部にプレビューとG2997ダウンロード(pdfファイル)リンクがあります。 Total 10 pages
www.DataSheet4U.com
Global Mixed-mode Technology Inc.
DDR Termination Regulator
G2997
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 20µF 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
SSTL−2, SSTL−18
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
20µF (2x10µF) 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
G2997P7U G2997 -40°C~85°C
G2997F6U G2997 -40°C~85°C
Note: P7: MSOP-10 F6: MSOP-10 (FD)
U: Tape & Reel
(FD): Thermal Pad
PACKAGE
(Pb free)
MSOP-10
MSOP-10 (FD)
Pin Configuration
Typical Application Circuit
VDDQSNS 1
VLDOIN 2
VTT 3
PGND 4
VTTSNS 5
G2997
Top View
MSOP-10
10 VIN
9 S5
8 GND
7 S3
6 VTTREF
Thermal
Pad
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
2.5V
C1
2*10µF
VDDQSNS
VLDOIN
VIN
S5
VTT GND
PGND
S3
VTTSNS VTTREF
VIN=5V
S5
S3
C2
0.1µF
Ver: 1.1
Jul 06, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
1 Page www.DataSheet4U.com
Global Mixed-mode Technology Inc.
G2997
Typical Performance Characteristics
CVLDOIN=10µF/MLCC/X5R, CVIN=1µF/MLCC/X5R, CVTTREF =0.1µF,CVTT=20µF/X5R/MLCC unless otherwise
noted.
VIN Supply Current vs Temperature
1.1
1
0.9
0.8
0.7
0.6
0.5 VIN=5.0V
0.4 VDDQSNS=2.5V
0.3
0.2 VLDOIN=2.5V
0.1
0
-40 -20 0 20 40 60 80 100 120 140
Temperature(°C)
VIN Shutdown Current vs Temperature
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
-40 -20 0
VIN=5.0V
VDDQSNS=2.5V
VLDOIN=2.5V
20 40 60 80 100 120 140
Temperature(°C)
VLDOIN Supply Current vs Temperature
32
31
30
29 VIN=5.0V
28 VDDQSNS=2.5V
27 VLDOIN=2.5V
26
25
24
23
22
-40 -20 0
20 40 60 80 100 120 140
Temperature (°C)
VLDOIN Shutdown Current vs Temperature
0.6
0.5
0.4 VIN=5.0V
VDDQSNS=2.5V
0.3 VLDOIN=2.5V
0.2
0.1
0
-40 -20 0 20 40 60 80 100 120 140
Temperature (°C)
VTTREF Discharge Current vs Temperature
0.43
0.42
0.41
0.4
VTTREF=0.5V
0.39
0.38
0.37
0.36
0.35
0.34
0.33
VIN=5.0V
VDDQSNS=2.5V
VLDOIN=2.5V
0.32
-40 -20 0 20 40 60 80 100 120 140
Temperature (°C)
Ver: 1.1
Jul 06, 2006
3
VTT Discharge Current vs Temperature
28
26
24 VTT=0.5V
22
20
18 VIN=5.0V
16 VDDQSNS=2.5V
VLDOIN=2.5V
14
-40 -20 0 20 40 60 80
Temperature (°C)
100 120 140
TEL: 886-3-5788833
http://www.gmt.com.tw
3Pages www.DataSheet4U.com
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
VTT Voltage Load Transient Response
G2997
Recommended Minimum Footprint
MSOP-10
MSOP-10 (FD)
Ver: 1.1
Jul 06, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
6
6 Page | |||
ページ | 合計 : 10 ページ | ||
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PDF ダウンロード | [ G2997 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
G2992 | 3A DDR Bus Termination Regulator | Global Mixed-mode Technology |
G2993 | DDR Termination Regulator | Global Mixed-mode Technology |
G2995 | DDR Termination Regulator | Global Mixed-mode Technology |
G2996 | DDR I/II Termination Regulator | Global Mixed-mode Technology |