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參數(shù)資料
| 型號： | LT1521 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 248K |
| 代理商： | LT1521 |
6
LT1521/LT1521-3
LT1521-3.3/LT1521-5
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
INPUT VOLTAGE (V)
0
G
μ
A
1000
900
800
700
600
500
400
300
200
100
0
8
LT1521 TPC18
2
1
3
5
7
9
4
6
10
T
J
= 25
°
C
R
LOAD
= 75
I
LOAD
= 50mA*
R
LOAD
= 150
I
LOAD
= 25mA*
R
LOAD
= 375
I
LOAD
= 10mA*
R
LOAD
= 3.8k
I
LOAD
= 1mA*
V
OUT
= V
ADJ
*FOR V
OUT
= 3.75V
INPUT VOLTAGE (V)
0
G
μ
A
1000
900
800
700
600
500
400
300
200
100
0
8
LT1521 TPC16
2
1
3
5
7
9
4
6
10
T
= 25
°
C
*FOR V
OUT
= 5V
R
LOAD
= 100
I
LOAD
= 50mA*
R
LOAD
= 200
I
LOAD
= 25mA*
R
LOAD
= 500
I
LOAD
= 10mA*
R
LOAD
= 5k
I
LOAD
= 1mA*
LT1521-5
Ground Pin Current
INPUT VOLTAGE (V)
0
G
8
7
6
5
4
3
2
1
0
8
LT1521 TPC17
2
4
6
10
7
1
3
5
9
T
J
= 25
°
C
*FOR V
OUT
= 5V
R
LOAD
= 16.7
I
LOAD
= 300mA*
R
LOAD
= 33.3
I
LOAD
= 150mA*
R
LOAD
= 50
I
LOAD
= 100mA*
LT1521-5
Ground Pin Current
LT1521
Ground Pin Current
LT1521
Ground Pin Current
INPUT VOLTAGE (V)
0
G
8
7
6
5
4
3
2
1
0
8
LT1521 TPC19
2
4
6
10
7
1
3
5
9
T
J
= 25
°
C
V
OUT
= V
ADJ
*FOR V
OUT
= 3.75V
R
LOAD
= 12.5
I
LOAD
=300mA*
R
LOAD
= 25
I
LOAD
=150mA*
R
LOAD
= 37.5
I
LOAD
=100mA*
Ground Pin Current
Shutdown Pin Threshold
(On-to-Off)
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
LT1521 TPC21
–25
25
100
125
I
LOAD
= 1mA
OUTPUT CURRENT (mA)
0
0
G
2
3
4
5
6
7
50
100
150
200
LT1521 TPC20
250
8
9
10
1
300
V
IN
= 3V (LT1521-3)
V
IN
= 3.3V (LT1521-3.3)
V
IN
= 5V (LT1521-5)
V
IN
= 3.75V (LT1521)
DEVICE IS OPERATING
IN DROPOUT
T
J
= 125
°
C
T
J
= 55
°
C
T
J
= 25
°
C
INPUT VOLTAGE (V)
0
G
8
7
6
5
4
3
2
1
0
8
LT1521 TPC13
2
4
6
10
7
1
3
5
9
T
= 25
°
C
*FOR V
OUT
= 3V
R
LOAD
= 10
I
LOAD
= 300mA*
R
LOAD
= 20
I
LOAD
= 150mA*
R
LOAD
= 30
I
LOAD
= 100mA*
INPUT VOLTAGE (V)
0
G
μ
A
600
800
1000
900
700
500
300
100
8
LT1521 TPC14
400
200
0
2
1
3
5
7
9
4
6
10
T
J
= 25
°
C
*FOR V
OUT
= 3.3V
R
LOAD
= 66
I
LOAD
= 50mA*
R
LOAD
= 132
I
LOAD
= 25mA*
R
LOAD
= 330
I
LOAD
= 10mA*
R
LOAD
= 3.3k
I
LOAD
= 1mA*
INPUT VOLTAGE (V)
0
G
8
7
6
5
4
3
2
1
0
8
LT1521 TPC15
2
4
6
10
7
1
3
5
9
R
LOAD
= 11
I
LOAD
= 300mA*
R
LOAD
= 22
I
LOAD
= 150mA*
R
LOAD
= 33
I
LOAD
= 100mA*
T
= 25
°
C
*FOR V
OUT
= 3.3V
LT1521-3.3
Ground Pin Current
LT1521-3.3
Ground Pin Current
LT1521-3
Ground Pin Current
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