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參數資料
型號: TPS51200DRCT
廠商: TEXAS INSTRUMENTS INC
元件分類: 模擬信號調理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO10
封裝: GREEN, PLASTIC, VSON-10
文件頁數: 3/35頁
文件大小: 1131K
代理商: TPS51200DRCT
www.ti.com
Output Tolerance Consideration for VTT DIMM Applications
DDR3 240 Pin Socket
TPS51200
10 mF
VO
S
P
D
V
tt
D
Q
V
d
V
tt
V
d
C
A
C
A
V
d
D
Q
UDG-08022
R
S
20 W
V
OUT
V
IN
25 W
V
TT
V
DDQ
Ouput
Buffer
(Driver)
Receiver
V
SS
UDG-08023
Q1
Q2
SLUS812 – FEBRUARY 2008
The TPS51200 is specifically designed to power up the memory termination rail (as shown in Figure 3). The DDR
memory termination structure determines the main characteristics of the VTT rail, which is to be able to sink and
source current while maintaining acceptable VTT tolerance. See Figure 4 for typical characteristics for a single
memory cell.
Figure 3. Typical Application Diagram for DDR3 VTT DIMM using TPS51200
Figure 4. DDR Physical Signal System Bi-Directional SSTL Signaling
In Figure 4, when Q1 is on and Q2 is off:
Current flows from VDDQ via the termination resistor to VTT
VTT sinks current
In Figure 4, when Q2 is on and Q1 is off:
Current flows from VTT via the termination resistor to GND
VTT sources current
Copyright 2008, Texas Instruments Incorporated
11
Product Folder Link(s): TPS51200
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相關代理商/技術參數
參數描述
TPS51200DRCT 制造商:Texas Instruments 功能描述:IC DDR TERMINATION REGULATOR 3A SON10 制造商:Texas Instruments 功能描述:IC, DDR TERMINATION REGULATOR, 3A, SON10
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TPS51200MDRCTEP 功能描述:- Converter, DDR Voltage Regulator IC 1 Output 10-VSON (3x3) 制造商:texas instruments 系列:- 包裝:剪切帶(CT) 零件狀態:新產品 應用:轉換器,DDR 電壓 - 輸入:2.38 V ~ 3.5 V 輸出數:1 電壓 - 輸出:- 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商器件封裝:10-VSON(3x3) 標準包裝:1
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