LT1121IS8-3.3#PBF Linear Technology, LT1121IS8-3.3#PBF Datasheet - Page 5
LT1121IS8-3.3#PBF
Manufacturer Part Number
LT1121IS8-3.3#PBF
Description
IC REG LDO 3.3V 150MA 8-SOIC
Manufacturer
Linear Technology
Datasheet
1.LT1121CZ-5PBF.pdf
(16 pages)
Specifications of LT1121IS8-3.3#PBF
Regulator Topology
Positive Fixed
Voltage - Output
3.3V
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)
Primary Input Voltage
20V
Output Voltage Fixed
3.3V
Dropout Voltage Vdo
420mV
No. Of Pins
8
Output Current
150mA
Operating Temperature Range
-40°C To +125°C
Msl
MSL 1 - Unlimited
Rohs Compliant
Yes
Voltage Regulator Type
Linear
Topology
LDO
Regulator Output Type
Fixed
Polarity Type
Positive
Number Of Outputs
Single
Input Voltage (min)
-30V
Input Voltage (max)
30V
Output Voltage
3.3V
Package Type
SOIC N
Load Regulation
-25mV
Line Regulation
10mV
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Dropout Voltage@current (max)
0.16@1mA/0.35@50mA
Dropout Voltage@current (typ)
0.13@1mA/0.42@150mA
Pin Count
8
Mounting
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TYPICAL PERFORMANCE CHARACTERISTICS
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
800
700
600
500
400
300
200
100
120
100
80
60
40
20
0
0
–50
0
0
LT1121-3.3
Quiescent Current
LT1121-3.3
Output Voltage
LT1121-3.3
Ground Pin Current
T
I
OUT
J
= 25°C
1
1
–25
= 1mA
2
2
*FOR V
0
TEMPERATURE (°C)
3
3
INPUT VOLTAGE (V)
V
INPUT VOLTAGE (V)
SHDN
4
4
25
OUT
= OPEN
5
5
= 3.3V
V
50
SHDN
6
6
R
I
R
I
LOAD
LOAD
R
I
LOAD
LOAD
LOAD
LOAD
= 0V
75
7
7
T
R
= 25mA*
= 10mA*
= 130Ω
= 1mA*
= 330Ω
J
LOAD
= 3.3k
8
8
= 25°C
100
1121 G07
1121 G04
1121 G10
9
9
=
∞
125
10
10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
120
100
800
700
600
500
400
300
200
100
80
60
40
20
0
0
–50
0
0
LT1121-5
Quiescent Current
LT1121-5
Output Voltage
LT1121-5
Ground Pin Current
I
T
OUT
J
1
= 25°C
1
–25
= 1mA
2
2
0
TEMPERATURE (°C)
3
3
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
*FOR V
4
4
25
V
SHDN
5
5
LT1121/LT1121-3.3/LT1121-5
OUT
50
6
6
R
I
R
I
= 5V
R
I
= OPEN
LOAD
LOAD
LOAD
LOAD
LOAD
V
LOAD
SHDN
7
75
7
= 25mA*
= 10mA*
= 1mA*
= 200Ω
= 500Ω
T
R
= 5k
J
LOAD
= 0V
8
8
= 25°C
100
1121 G08
1121 G05
1121 G11
9
9
=
∞
125
10
10
3.83
3.81
3.79
3.77
3.75
3.73
3.71
3.69
3.67
120
100
800
700
600
500
400
300
200
100
80
60
40
20
0
0
–50
0
0
LT1121
Quiescent Current
LT1121
Adjust Pin Voltage
LT1121
Ground Pin Current
I
T
V
OUT
J
OUT
= 25°C
1
1
–25
= 1mA
= V
2
2
ADJ
0
TEMPERATURE (°C)
3
3
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
*FOR V
V
SHDN
4
4
25
OUT
5
= OPEN
5
V
50
SHDN
= 3.75V
6
6
R
I
R
I
LOAD
LOAD
= 0V
R
I
7
75
LOAD
7
LOAD
LOAD
LOAD
T
R
V
J
OUT
LOAD
= 25°C
= 10mA*
8
8
= 25mA*
= 380Ω
= 150Ω
= 1mA*
100
= 3.8k
= V
=
1121 G09
1121 G12
1121 G06
9
9
∞
ADJ
1121ff
5
125
10
10