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參數(shù)資料
| 型號(hào)： | RT9199PSP |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Cost-Effective, 2A Peak Sink/Source Bus Termination Regulator |
| 中文描述： | 成本效益，2A峰值匯/源總線終端穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大小： | 214K |
| 代理商： | RT9199PSP |
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RT9199
1
DS9199-07 September 2007
www.richtek.com
Pin Configurations
Cost-Effective, 2A Peak Sink/Source Bus Termination Regulator
Ordering Information
RT9199
General Description
The RT9199 is a simple, cost-effective and high-speed
linear regulator designed to generate termination voltage
in double data rate (DDR) memory system to comply with
the devices requirements. The regulator is capable of
actively sinking or sourcing up to 2A peak while regulating
an output voltage to within 20mV. The output termination
voltage can be tightly regulated to track 1/2V
DDQ
by two
external voltage divider resistors or the desired output
voltage can be pro-grammed by externally forcing the
REFEN pin voltage.
The RT9199 also incorporates a high-speed differential
amplifier to provide ultra-fast response in line/load transient.
Other features include extremely low initial offset voltage,
excellent load regulation, current limiting in bi-directions
and on-chip thermal shut-down protection.
The RT9199 are available in both SOP-8 and SOP-8
(Exposed Pad) surface mount packages.
Features
z
Ideal for DDR-II V
TT
Applications
z
Sink and Source 2A Peak Current
z
Integrated Power MOSFETs
z
Generate Termination Voltage for DDR Memory
Interfaces
z
High Accuracy Output Voltage at Full-Load
z
Output Adjustment by Two External Resistors
z
Low External Component Count
z
Shutdown for Suspend to RAM (STR) Functionality
with High-Impedance Output
z
Current Limiting Protection
z
On-Chip Thermal Protection
z
RoHS Compliant and 100% Lead (Pb)-Free
Applications
z
Desktop PCs, Notebooks, and Workstations
z
Graphics Card Memory Termination
z
Set Top Boxes, Digital TVs, Printers
z
Embedded Systems
z
Active Termination Buses
z
DDR/II Memory Systems
(TOP VIEW)
SOP-8
SOP-8 (Exposed Pad)
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.
VIN
GND
REFEN
VOUT
VCNTL
VCNTL
2
3
4
5
6
7
8
VCNTL
VCNTL
Package Type
S : SOP-8
SP : SOP-8 (Exposed Pad-Option 2)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
VIN
GND
REFEN
VOUT
NC
NC
VCNTL
NC
GND
2
3
4
5
6
7
8
9
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