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參數(shù)資料
| 型號： | L1581D-3.3 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual Input Ultra Low Dropout Voltage Regulator (ULDO) |
| 中文描述： | 雙路輸入超低壓差穩(wěn)壓器（ULDO） |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 116K |
| 代理商： | L1581D-3.3 |
ABSOLUTE MAXIMUM RATINGS
3
Dual Input Ultra Low Dropout
Voltage Regulator (ULDO)
L1581 Series
TO-252
OCT-11-Y02
NIKO-SEM
z
Input Supply Voltage, V
IN
Control Input Voltage, V
CTRL
7V
13.2V
Internally
Limited
z
Operating Junction
Temperature Range, T
J
z
Storage Temperature
Range, T
STG
z
Lead Temperature, T
LEAD
(Soldering, 10 Seconds)
0 to 125 °C
z
Power Dissipation, P
D
-40 to 150 °C
z
Thermal Resistance
Junction to Case,
θ
JC
z
Thermal Resistance
Junction to Ambient,
θ
JA
3 °C/W
260 °C
60 °C/W
ELECTRICAL CHARACTERISTICS
(
Unless otherwise specified, V
out
= V
sns
, V
adj
= 0V ,
C
ctl
= C
in
= C
out
=10
uF
,T
J
= 25 °C)
Parameter
Symbol
Test Conditions
Typical
Limits
V
CTRL
=4.5V, V
IN
=2.05V, I
OUT
=10mA
1.237V~1.263V
1.25V
1.231V~1.269V
Reference Voltage
(1)
(Adj. Voltage
Versions)
V
REF
V
CTRL
= 4.5V, 10mA <
I
OUT
< 5A,
V
IN
= 2.05V
Dropout Voltage
(1) (2)
Minimum V
IN
V
I
- V
O
V
CTRL
= 4.75V, I
OUT
= 5A
0.54V
0.62V (Max)
V
CTRL
= 5V, V
IN
= V
OUT
＋
0.8V,
I
OUT
=10mA
V
CTRL
= 5V, 10mA <
I
OUT
< 5A,
V
IN
= V
OUT
＋
0.8V
REG
(LINE)
V
CTRL
= 4.5V to 12V, V
IN
= (V
OUT
＋
0.8V) to 5.5V, I
OUT
= 10mA
REG
(LOAD)
V
CTRL
= 4.5V, V
IN
= (V
OUT
＋
0.8V) ,
I
OUT
= 10mA ~ 5A
±
1%
Output Voltage
(1)
(Fixed Voltage
Versions)
V
OUT
V
OUT
±
1.5%
Line Regulation
(1)
1.0mV
3.0mV
Load Regulation
1.0mV
5.0mV
Thermal Regulation
(6)
REG
(Thermal)
0.002
% / W
0.02% / W
Minimum Load
Current
(4)
Adjust Pin Current
I
O
V
CTRL
= 5V, V
IN
= V
OUT
＋
0.8V
5mA
10mA
I
ADJ
V
CTRL
= 4.5V, V
IN
=
V
OUT
＋
0.8V
,
I
OUT
= 10mA
V
CTRL
= 4.5V, V
IN
=
V
OUT
＋
0.8V
,
I
OUT
= 5A
V
CTRL
= 4.5V, V
IN
=
V
OUT
＋
0.8V
Δ
V
OUT
= 100mV
50
μ
A
120
μ
A
Control Pin Current
(3)
I
CTRL
33mA
120mA
Current Limit
I
CL
5.1A (Min)
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