LT1121AIS8 Linear Technology, LT1121AIS8 Datasheet - Page 6

• Manufacturer Part Number: LT1121AIS8
• Description: IC REG LDO ADJ 150MA 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1121AIS8

• Regulator Topology: Positive Adjustable
• Voltage - Output: 3.75 ~ 30 V
• Voltage - Input: 4.17 ~ 30 V
• Voltage - Dropout (typical): 0.42V @ 150mA
• Number Of Regulators: 1
• Current - Output: 150mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -

LT1121/LT1121-3.3/LT1121-5
TYPICAL PERFORMANCE CHARACTERISTICS
6
10
14
12
10
10
9
8
7
6
5
4
3
2
1
0
8
6
4
2
0
9
8
7
6
5
4
3
2
1
0
–50
0
0
LT1121-3.3
Ground Pin Current
Ground Pin Current
Shutdown Pin Current
T
V
V
V
V
DEVICE IS OPERATING
IN DROPOUT
J
SHDN
IN
IN
IN
= 25°C
1
20
–25
= 3.3V (LT1121-3.3)
= 5V (LT1121-5)
= 3.75V (LT1121)
= 0V
2
40
OUTPUT CURRENT (mA)
0
*FOR V
3
INPUT VOLTAGE (V)
TEMPERATURE (°C)
T
60
J
4
= 25°C
25
R
I
LOAD
OUT
LOAD
80
5
= 3.3V
50
= 150mA*
T
= 22Ω
J
100
6
= 125°C
R
I
LOAD
R
I
LOAD
LOAD
LOAD
7
75
120
T
J
= 100mA*
= 50mA*
= 33Ω
8
= –55°C
= 66Ω
100
140 160
1121 G13
9
1121 G16
1121 G19
125
10
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
25
20
15
10
9
8
7
6
5
4
3
2
1
0
0
5
0
–50
0
0
LT1121-5
Ground Pin Current
Shutdown Pin Threshold
(On-to-Off)
Shutdown Pin Input Current
T
I
LOAD
J
= 25°C
1
1
–25
= 1mA
SHUTDOWN PIN VOLTAGE (V)
2
2
0
3
INPUT VOLTAGE (V)
TEMPERATURE (°C)
3
4
*FOR V
25
4
5
50
5
OUT
6
R
I
R
I
R
I
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
6
= 5V
7
75
= 150mA*
= 100mA*
= 50mA*
= 33Ω
7
= 50Ω
= 100Ω
8
100
8
1121 G14
1121 G20
9
1121 G17
125
10
9
400
350
300
250
200
150
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
50
9
8
7
6
5
4
3
2
1
0
0
0
–50
–50
0
LT1121
Ground Pin Current
Shutdown Pin Threshold
(Off-to-On)
LT1121
Adjust Pin Bias Current
T
V
J
OUT
= 25°C
1
–25
–25
= V
2
ADJ
0
0
3
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
*FOR V
4
25
25
5
OUT
50
50
6
= 3.75V
R
I
R
I
LOAD
LOAD
R
I
I
LOAD
LOAD
LOAD
LOAD
LOAD
7
I
75
75
LOAD
= 150mA*
= 100mA*
= 25Ω
= 38Ω
= 50mA*
= 150mA
8
= 75Ω
= 1mA
100
100
1121 G15
9
1121 G18
1121 G21
1121ff
125
125
10