參數(shù)資料
型號(hào): LT1121AIS8-3.3
廠商: LINEAR TECHNOLOGY CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO8
封裝: 0.150 INCH, PLASTIC, SOP-8
文件頁(yè)數(shù): 5/12頁(yè)
文件大?。?/td> 269K
代理商: LT1121AIS8-3.3
5
LT1121/LT1121-3.3/LT1121-5
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
LT1121-5
Ground Pin Current
Ground Pin Current
OUTPUT CURRENT (mA)
G
14
12
10
8
6
4
2
0
40
80
120
1121 G29
20
60
140
160
0
100
T
J
=
125°C
T
J
=
–55°C
T
J
=
25°C
V
IN
=
3.3V (LT1121-3.3)
V
IN
=
5V (LT1121-5)
V
=
3.75V (LT1121)
DEVICE IS OPERATING
IN DROPOUT
Shutdown Pin Threshold
(On-to-Off)
Shutdown Pin Threshold
(Off-to-On)
LT1121
Ground Pin Current
LT1121-3.3
Ground Pin Current
INPUT VOLTAGE (V)
0
G
μ
A
800
700
600
500
400
300
200
100
0
8
1121 G10
2
4
6
10
1
3
5
7
9
R
LOAD
= 130
I
LOAD
= 25mA*
R
LOAD
= 330
I
LOAD
= 10mA*
R
LOAD
= 3.3k
I
LOAD
= 1mA*
T
J
= 25°C
*FOR V
OUT
= 3.3V
LT1121-3.3
Ground Pin Current
INPUT VOLTAGE (V)
0
G
μ
A
800
700
600
500
400
300
200
100
0
8
1121 G06
2
4
6
10
1
3
5
7
9
T
J
= 25°C
R
LOAD
= 500
I
LOAD
= 10mA*
R
LOAD
= 5k
I
LOAD
= 1mA*
R
LOAD
= 200
I
LOAD
= 25mA*
*FOR V
OUT
= 5V
LT1121
Ground Pin Current
INPUT VOLTAGE (V)
0
G
10
9
8
7
6
5
4
3
2
1
0
8
1121 G09
2
4
6
10
1
3
5
7
9
T
J
= 25°C
R
LOAD
= 22
I
LOAD
= 150mA*
R
LOAD
= 33
I
LOAD
= 100mA*
R
LOAD
= 66
I
LOAD
= 50mA*
*FOR V
OUT
= 3.3V
INPUT VOLTAGE (V)
0
G
10
9
8
7
6
5
4
3
2
1
0
8
1121 G05
2
4
6
10
1
3
5
7
9
T
J
= 25°C
R
LOAD
= 50
I
LOAD
= 100mA*
R
LOAD
= 100
I
LOAD
= 50mA*
R
LOAD
= 33
I
LOAD
= 150mA*
*FOR V
OUT
= 5V
LT1121-5
Ground Pin Current
INPUT VOLTAGE (V)
0
G
10
9
8
7
6
5
4
3
2
1
0
8
1121 G07
2
4
6
10
1
3
5
7
9
T
J
= 25°C
V
OUT
= V
ADJ
R
LOAD
= 25
I
LOAD
= 150mA*
R
LOAD
= 38
I
LOAD
= 100mA*
R
LOAD
= 75
I
LOAD
= 50mA*
*FOR V
OUT
= 3.75V
TEMPERATURE (°C)
–50
S
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
75
1121 G16
–25
25
100
125
I
LOAD
= 1mA
TEMPERATURE (°C)
–50
S
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
75
1121 G17
–25
25
100
125
I
LOAD
= 1mA
I
LOAD
= 150mA
INPUT VOLTAGE (V)
0
G
μ
A
800
700
600
500
400
300
200
100
0
8
1121 G08
2
4
6
10
1
3
5
7
9
T
J
= 25°C
V
OUT
= V
ADJ
R
LOAD
= 150
I
LOAD
= 25mA*
R
LOAD
= 380
I
LOAD
= 10mA*
R
LOAD
= 3.8k
I
LOAD
= 1mA*
*FOR V
OUT
= 3.75V
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