參數(shù)資料
型號(hào): RT9173APS
廠商: Richtek Technology Corporation
英文描述: Peak 3A Bus Termination Regulator
中文描述: 山頂3A條總線終端穩(wěn)壓器
文件頁(yè)數(shù): 1/13頁(yè)
文件大小: 317K
代理商: RT9173APS
RT9173/A
1
DS9173/A-18 March 2007
www.richtek.com
Features
z
Support Both DDR 1 (1.25V
TT
) and DDR 2
(0.9V
TT
) Requirements
z
SOP-8, TO-252-5 and TO-263-5 Packages
z
Capable of Sourcing and Sinking 3A Peak Current
z
Current-limiting Protection
z
Thermal Protection
z
Integrated Power MOSFETs
z
Generates Termination Voltages for SSTL-2
z
High Accuracy Output Voltage at Full-Load
z
Adjustable V
OUT
by External Resistors
z
Minimum External Components
z
Shutdown for Standby or Suspend Mode
Operation with High-impedance Output
z
RoHS Compliant and 100% Lead (Pb)-Free
Pin Configurations
Applications
z
DDR Memory Termination
z
Active Termination Buses
z
Supply Splitter
Peak 3A Bus Termination Regulator
Ordering Information
General Description
The RT9173/A regulator is designed to convert voltage
supplies ranging from 1.6V to 6V into a desired output
voltage which adjusted by two external voltage divider
resistors. The regulator is capable of sourcing or sinking
up to
3A of peak current while regulatin
g an output voltage
to within 2% (DDR 1) and 3% (DDR 2) or less.
The RT9173/A, used in conjunction with series termination
resistors, provides an excellent voltage source for active
termination schemes of high speed transmission lines as
those seen in high speed memory buses and distributed
backplane designs. The voltage output of the regulator can
be used as a termination voltage for DDR SDRAM.
Current limits in both sourcing and sinking mode, plus on-
chip thermal shutdown make the circuit tolerant of the
output fault conditions.
(TOP VIEW)
TO-263-5 (RT9173A)
4
2
3
5
1
VOUT
REFEN
VCNTL (TAB)
GND
VIN
TO-252-5 (RT9173A)
4
2
3
5
1
VOUT
REFEN
VCNTL (TAB)
GND
VIN
2
3
4
5
8
7
6
VCNTL
VCNTL
VIN
GND
REFEN
VOUT
VCNTL
VCNTL
SOP-8 (RT9173)
Note :
RichTek Pb-free and Green products are :
`
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
`
Suitable for use in SnPb or Pb-free soldering processes.
`
100%matte tin (Sn) plating.
RT9173/A
Package Type
M5 : TO-263-5
L5 : TO-252-5
S : SOP-8
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
3A Sink & Source
1.5A Sink & Source
相關(guān)PDF資料
PDF描述
RT9173GL5 Peak 3A Bus Termination Regulator
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