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參數(shù)資料
| 型號： | RT9173DPSP |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Cost-Effective, Peak 3A Sink/Source Bus Termination Regulator |
| 中文描述： | 成本效益，峰值3A條接收器/源總線終端穩(wěn)壓器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大小： | 233K |
| 代理商： | RT9173DPSP |
RT9173D
4
DS9173D-05 September 2007
www.richtek.com
Electrical Characteristics
(V
IN
= 2.5V/1.8V/1.5V, V
CNTL
= 3.3V, V
REFEN
= 1.25V/0.9V/0.75V, C
OUT
= 10
μ
F (Ceramic), T
A
= 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max Units
Input
V
CNTL
Operation Current
I
CNTL
I
OUT
= 0A
--
1
2.5
mA
Standby Current (Note 7)
I
STBY
V
REFEN
<
0.2V (Shutdown),
R
LOAD
= 180
Ω
--
50
90
μ
A
Output (DDR / DDR II / DDR III)
Output Offset Voltage (Note 5)
V
OS
I
OUT
= 0A
20
--
+20
mV
I
OUT
= +2A
Load Regulation (Note 6)
Δ
V
LOAD
I
OUT
=
2A
20
--
+20
mV
Protection
Current limit
I
LIM
V
IN
= 2.5V/1.8V/1.5V
3.3V
≤
V
CNTL
≤
5V
--
3.4
--
A
Thermal Shutdown Temperature T
SD
125
170
--
°
C
Thermal Shutdown Hysteresis
Δ
T
SD
3.3V
≤
V
CNTL
≤
5V
--
35
--
°
C
REFEN Shutdown
V
IH
Enable
0.6
--
--
Shutdown Threshold
V
IL
Shutdown
--
--
0.2
V
Absolute Maximum Ratings
(Note 1)
z
Input Voltage, V
IN
------------------------------------------------------------------------------------------------------ 6V
z
Control Voltage, V
CNTL
----------------------------------------------------------------------------------------------- 6V
z
Power Dissipation, P
D
@ T
A
= 25
°
C
SOP-8 (Exposed Pad) -----------------------------------------------------------------------------------------------
1.33W
z
Package Thermal Resistance (Note 4)
SOP-8 (Exposed Pad),
θ
JA
------------------------------------------------------------------------------------------ 75
°
C/W
SOP-8 (Exposed Pad),
θ
JC
----------------------------------------------------------------------------------------- 28
°
C/W
z
Junction Temperature-------------------------------------------------------------------------------------------------
125
°
C
z
Lead Temperature (Soldering, 10 sec.)---------------------------------------------------------------------------
260
°
C
z
Storage Temperature Range ----------------------------------------------------------------------------------------
–
65
°
C to 150
°
C
z
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode)-------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
(Note 3)
z
Input Voltage, V
IN
------------------------------------------------------------------------------------------------------ 2.5V to 1.5V
±
3%
z
Control Voltage, V
CNTL
----------------------------------------------------------------------------------------------- 5V or 3.3V
±
5%
z
Ambient Temperature Range----------------------------------------------------------------------------------------
40
°
C to 85
°
C
z
Junction Temperature Range----------------------------------------------------------------------------------------
40
°
C to 125
°
C
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