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LT1121CS8 数据表(PDF) 5 Page - Linear Technology

部件名 LT1121CS8
功能描述  Micropower Low Dropout Regulators with Shutdown
PDF  12 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1121CS8 数据表(HTML) 5 Page - Linear Technology

  LT1121CS8 Datasheet HTML 1Page - Linear Technology LT1121CS8 Datasheet HTML 2Page - Linear Technology LT1121CS8 Datasheet HTML 3Page - Linear Technology LT1121CS8 Datasheet HTML 4Page - Linear Technology LT1121CS8 Datasheet HTML 5Page - Linear Technology LT1121CS8 Datasheet HTML 6Page - Linear Technology LT1121CS8 Datasheet HTML 7Page - Linear Technology LT1121CS8 Datasheet HTML 8Page - Linear Technology LT1121CS8 Datasheet HTML 9Page - Linear Technology Next Button
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5
LT1121/LT1121-3.3/LT1121-5
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
LT1121-5
Ground Pin Current
Ground Pin Current
OUTPUT CURRENT (mA)
14
12
10
8
6
4
2
0
40
80
120
1121 G29
20
60
140 160
0
100
TJ = 125°C
TJ = –55°C
TJ = 25°C
VIN = 3.3V (LT1121-3.3)
VIN = 5V (LT1121-5)
VIN = 3.75V (LT1121)
DEVICE IS OPERATING
IN DROPOUT
Shutdown Pin Threshold
(On-to-Off)
Shutdown Pin Threshold
(Off-to-On)
LT1121
Ground Pin Current
LT1121-3.3
Ground Pin Current
INPUT VOLTAGE (V)
0
800
700
600
500
400
300
200
100
0
8
1121 G10
2
4
6
10
135
79
RLOAD = 130Ω
ILOAD = 25mA*
RLOAD = 330Ω
ILOAD = 10mA*
RLOAD = 3.3k
ILOAD = 1mA*
TJ = 25°C
*FOR VOUT = 3.3V
LT1121-3.3
Ground Pin Current
INPUT VOLTAGE (V)
0
800
700
600
500
400
300
200
100
0
8
1121 G06
2
4
6
10
135
79
TJ = 25°C
RLOAD = 500Ω
ILOAD = 10mA*
RLOAD = 5k
ILOAD = 1mA*
RLOAD = 200Ω
ILOAD = 25mA*
*FOR VOUT = 5V
LT1121
Ground Pin Current
INPUT VOLTAGE (V)
0
10
9
8
7
6
5
4
3
2
1
0
8
1121 G09
2
4
6
10
13
57
9
TJ = 25°C
RLOAD = 22Ω
ILOAD = 150mA*
RLOAD = 33Ω
ILOAD = 100mA*
RLOAD = 66Ω
ILOAD = 50mA*
*FOR VOUT = 3.3V
INPUT VOLTAGE (V)
0
10
9
8
7
6
5
4
3
2
1
0
8
1121 G05
2
4
6
10
13
57
9
TJ = 25°C
RLOAD = 50Ω
ILOAD = 100mA*
RLOAD = 100Ω
ILOAD = 50mA*
RLOAD = 33Ω
ILOAD = 150mA*
*FOR VOUT = 5V
LT1121-5
Ground Pin Current
INPUT VOLTAGE (V)
0
10
9
8
7
6
5
4
3
2
1
0
8
1121 G07
2
4
6
10
13
57
9
TJ = 25°C
VOUT = VADJ
RLOAD = 25Ω
ILOAD = 150mA*
RLOAD = 38Ω
ILOAD = 100mA*
RLOAD = 75Ω
ILOAD = 50mA*
*FOR VOUT = 3.75V
TEMPERATURE (°C)
–50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
75
1121 G16
–25
25
100
125
ILOAD = 1mA
TEMPERATURE (°C)
–50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
75
1121 G17
–25
25
100
125
ILOAD = 1mA
ILOAD = 150mA
INPUT VOLTAGE (V)
0
800
700
600
500
400
300
200
100
0
8
1121 G08
2
4
6
10
135
79
TJ = 25°C
VOUT = VADJ
RLOAD = 150Ω
ILOAD = 25mA*
RLOAD = 380Ω
ILOAD = 10mA*
RLOAD = 3.8k
ILOAD = 1mA*
*FOR VOUT = 3.75V



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