LT1521CST-3.3#TR Linear Technology, LT1521CST-3.3#TR Datasheet - Page 5
![IC LDO REG W/SD 3.3V SOT223-3](/photos/7/35/73514/sot-223-3_05-08-1630_sml.jpg)
LT1521CST-3.3#TR
Manufacturer Part Number
LT1521CST-3.3#TR
Description
IC LDO REG W/SD 3.3V SOT223-3
Manufacturer
Linear Technology
Datasheet
1.LT1521CST-5PBF.pdf
(16 pages)
Specifications of LT1521CST-3.3#TR
Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
4.3 ~ 20 V
Voltage - Dropout (typical)
0.5V @ 300mA
Number Of Regulators
1
Current - Output
300mA
Current - Limit (min)
320mA
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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
INPUT VOLTAGE (V)
TEMPERATURE ( C)
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
1521335fb
=
9
9
5
125
10
10