LT1521IST-3.3#PBF Linear Technology, LT1521IST-3.3#PBF Datasheet - Page 5

• Manufacturer Part Number: LT1521IST-3.3#PBF
• Description: IC LDO REG W/SD 3.3V SOT223-3
• Manufacturer: Linear Technology

Specifications of LT1521IST-3.3#PBF

• 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: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): -20V
• Input Voltage (max): 20V
• Output Voltage: 3.3V
• Package Type: SOT-223
• Output Current: 300mA
• Load Regulation: -30mV
• Line Regulation: 20mV
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.17@1mA/0.6@300mA
• Dropout Voltage@current (typ): 0.13@1mA/0.5@300mA
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant

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