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參數(shù)資料
| 型號： | RT9173BGS |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 2A Bus Termination Regulator |
| 中文描述： | 甲總線終端穩(wěn)壓器 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 273K |
| 代理商： | RT9173BGS |
RT9173B
5
DS9173B-09 March 2007
www.richtek.com
Electrical Characteristics
(V
IN
= 2.5V, V
CNTL
= 3.3V, V
REFEN
= 1.25V, C
OUT
= 10
μ
F (Ceramic), T
A
= 25°C unless otherwise specified)
Absolute Maximum Ratings
(Note 1)
z
Input Voltage------------------------------------------------------------------------------------------------------------ 7V
z
Power Dissipation, P
D
@ T
A
= 25
°
C
SOP-8-------------------------------------------------------------------------------------------------------------------- 0.625W
TO-252 ------------------------------------------------------------------------------------------------------------------- 1.471W
z
Package Thermal Resistance (Note 5)
SOP-8,
θ
JA
-------------------------------------------------------------------------------------------------------------- 160
°
C/W
SOP-8,
θ
JC
-------------------------------------------------------------------------------------------------------------- 23
°
C/W
TO-252,
θ
JA
------------------------------------------------------------------------------------------------------------- 68
°
C/W
TO-252,
θ
JC
------------------------------------------------------------------------------------------------------------- 8
°
C/W
z
Lead Temperature (Soldering, 10 sec.)--------------------------------------------------------------------------- 260
°
C
z
Junction Temperature ------------------------------------------------------------------------------------------------ 150
°
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
Junction Temperature Range---------------------------------------------------------------------------------------- –40°C to 125°C
Parameter
Symbol
Test Conditions
Min
Typ
Max Units
Output Offset Voltage
V
OS
I
OUT
= 0A, Figure 1 (Note 4)
I
L
: 0A
→
2A, Figure 1
I
L
: 0A
→
-2A
Keep V
CNTL
≥
V
IN
on operation power
on and power off sequences
20
0
20
mV
Load Regulation
Δ
V
LOAD
20
0
20
mV
V
IN
V
CNTL
I
CNTL
I
SHDN
1.7
2.5/1.8
--
Input Voltage Range (DDR I/II)
3
3.3/5
6
V
Operating Current of VCNTL
No Load
V
REFEN
<
0.2V, R
L
= 180
Ω
, Figure 2
--
1
2.5
mA
μ
A
Current In Shutdown Mode
--
50
90
Short Circuit Protection
Current limit
I
LIM
Figure 3,4
2.2
2.6
--
A
Over Temperature Protection
Thermal Shutdown Temperature T
SD
Thermal Shutdown Hysteresis
3.3V
≤
V
CNTL
≤
5V
3.3V
≤
V
CNTL
≤
5V
125
170
--
°
C
°
C
Δ
T
SD
--
35
--
Shutdown Function
Output = High, Figure 5
0.6
--
--
Shutdown Threshold Trigger
Output = Low, Figure 5
--
--
0.2
V
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