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參數(shù)資料
| 型號(hào)： | 522977R |
| 英文描述： | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 中文描述： | 集成電路 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 292K |
| 代理商： | 522977R |
2
LT1185
A
Input Voltage .......................................................... 35V
Input-Output Differential......................................... 30V
FB Voltage ................................................................ 7V
REF Voltage .............................................................. 7V
Output Voltage........................................................ 30V
Output Reverse Voltage ............................................ 2V
Operating Ambient Temperature Range
LT1185C ............................................... 0
°
C to 70
°
C
LT1185M ......................................... –55
°
C to 125
°
C
Operating Junction Temperature Range*
Control Section
LT1185C ............................................. 0
°
C to 125
°
C
LT1185I .......................................... –40
°
C to 125
°
C
LT1185M ........................................ –55
°
C to 150
°
C
Power Transistor Section
LT1185C ............................................. 0
°
C to 150
°
C
LT1185I .......................................... –40
°
C to 150
°
C
LT1185M ........................................ –55
°
C to 175
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................ 300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
ORDER PART
NUMBER
θ
JC MAX
= 2.5
°
C/W,
θ
JA
= 35
°
C/W
2
4
1
3
GND
FB
REF
V
IN
(CASE)
V
OUT
K PACKAGE
4-LEAD TO-3 METAL CAN
BOTTOM VIEW
U
PACKAGE/ORDER IU
ORDER PART
NUMBER
LT1185MK
LT1185CT
LT1185IT
PARAMETER
Reference Voltage (At FB Pin)
Reference Voltage Tolerance (At FB Pin) (Note 1)
CONDITIONS
MIN
TYP
2.37
0.3
1
MAX
UNITS
V
V
IN
– V
OUT
= 5V
1mA
≤
I
OUT
≤
3A
V
IN
– V
OUT
= 1.2V to V
IN
= 30V
P
≤
25W (Note 5), V
OUT
= 5V
T
MIN
≤
T
J
≤
T
MAX
(Note 8)
±
1
±
2.5
%
%
G
Feedback Pin Bias Current
Droput Voltage (Note 2)
G
0.7
0.20
0.67
0.05
2
μ
A
V
V
%
I
OUT
= 0.5A, V
OUT
= 5V
I
OUT
= 3A, V
OUT
= 5V
I
OUT
= 5mA to 3A
V
IN
– V
OUT
= 1.5V to 10V, V
OUT
= 5V
V
IN
– V
OUT
= 1V to 20V, V
OUT
= 5V
I
OUT
= 1A (Note 3)
I
OUT
= 3A
1.5V
≤
V
IN
– V
OUT
≤
10V
0.37
1.00
0.3
Load Regulation (Note 6)
Line Regulation (Note 6)
Minimum Input Voltage
0.002
4.0
4.3
3.6
0.01
%/V
V
V
A
A
A
A
A
Internal Current Limit (See Graph for
Guaranteed Curve) (Note 11)
3.3
3.1
2.0
1.0
0.2
4.0
4.2
4.0
2.6
1.0
G
G
G
G
V
IN
– V
OUT
= 15V
V
IN
– V
OUT
= 20V
V
IN
– V
OUT
= 30V
3.0
1.7
0.4
ELECTRICAL CHARACTERISTICS
Adjustable Version, V
IN
= 7.4V, V
OUT
= V
REF
, I
OUT
= 1mA, R
LIM
= 4.02k, unless otherwise noted.
*See Application Section for details on calculating Operation Junction Temperature
θ
JC MAX
= 2.5
°
C/W,
θ
JA
= 50
°
C/W
T PACKAGE
5-LEAD TO-220
REF
V
OUT
V
IN
FB
GND
FRONT VIEW
5
4
3
2
1
TAB IS V
IN
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