LT1521 Linear Technology, LT1521 Datasheet - Page 5

• Manufacturer Part Number: LT1521
• Description: 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
3.08
3.06
3.04
3.02
3.00
2.98
2.96
2.94
2.92
3.83
3.77
3.67
3.81
3.79
3.75
3.73
3.71
3.69
50
45
40
35
30
25
20
15
10
5
0
–50
–50
LT1521-3
Output Voltage
0
LT1521
Adjust Pin Voltage
LT1521-5
Quiescent Current
I
LOAD
–25
1
–25
= 1mA
2
0
0
TEMPERATURE ( C)
3
TEMPERATURE ( C)
INPUT VOLTAGE (V)
4
25
25
V
SHDN
5
50
50
= 0V
6
V
SHDN
75
75
7
W
T
= OPEN
J
8
LT1521 • TPC04
R
100
LT1521 • TPC07
LT1521 • TPC10
100
= 25 C
L
=
U
9
125
125
10
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
50
45
40
35
30
25
20
15
10
50
45
40
35
30
25
20
15
10
5
0
5
0
–50
LT1521-3.3
Output Voltage
0
0
LT1521-3
Quiescent Current
LT1521
Quiescent Current
I
OUT
1
1
–25
= 1mA
2
2
0
3
TEMPERATURE ( C)
3
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
4
4
V
25
V
V
SHDN
SHDN
SHDN
5
5
V
50
= 0V
= 0V
= OPEN
SHDN
6
6
75
= OPEN
7
7
T
T
J
J
8
8
R
LT1521 • TPC05
R
LT1521 • TPC11
LT1521 • TPC08
100
= 25 C
= 25 C
L
L
=
=
9
9
125
10
10
1000
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
LT1521-3.3/LT1521-5
900
800
700
600
500
400
300
200
100
50
45
40
35
25
20
15
10
30
5
0
0
–50
LT1521-5
Output Voltage
LT1521-3.3
Quiescent Current
0
0
LT1521-3
Ground Pin Current
T
*FOR V
1
1
–25
J
LT1521/LT1521-3
= 25 C
2
2
OUT
0
TEMPERATURE ( C)
3
3
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
= 3V
4
4
25
5
5
R
I
LOAD
R
I
LOAD
LOAD
50
LOAD
6
6
R
I
LOAD
= 25mA*
LOAD
= 120
= 1mA*
R
I
= 3k
LOAD
75
7
LOAD
7
T
= 10mA*
J
= 300
R
= 25 C
= 50mA*
LT1521 • TPC06
8
8
L
LT1521 • TPC09
= 60
LT1521 • TPC12
100
=
9
9
5
125
10
10