参数资料
型号: LT1121CZ-5
厂商: Linear Technology
文件页数: 6/16页
文件大小: 0K
描述: IC REG LDO 5V .15A TO92-3
产品培训模块: More Information on LDOs
标准包装: 100
稳压器拓扑结构: 正,固定式
输出电压: 5V
输入电压: 最高 30V
电压 - 压降(标准): 0.42V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA
工作温度: 0°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-226-3、TO-92-3(TO-226AA)成形引线
供应商设备封装: TO-92-3
包装: 散装
LT1121/LT1121-3.3/LT1121-5
TYPICAL PERFORMANCE CHARACTERISTICS
LT1121-3.3
Ground Pin Current
LT1121-5
Ground Pin Current
LT1121
Ground Pin Current
T J = 25 ° C
800
700
600
T J = 25 ° C
R LOAD = 130 Ω
I LOAD = 25mA*
800
700
600
T J = 25 ° C
R LOAD = 200 Ω
I LOAD = 25mA*
800
700 V OUT = V ADJ
600
R LOAD = 150 Ω
I LOAD = 25mA*
500
500
500
400
300
200
100
R LOAD = 330 Ω
I LOAD = 10mA*
*FOR V OUT = 3.3V
R LOAD = 3.3k
I LOAD = 1mA*
400
300
200
100
R LOAD = 500 Ω
I LOAD = 10mA*
*FOR V OUT = 5V
R LOAD = 5k
I LOAD = 1mA*
400
300
200
100
R LOAD = 380 Ω
I LOAD = 10mA*
*FOR V OUT = 3.75V
R LOAD = 3.8k
I LOAD = 1mA*
0
0
1
2
3
4
5
6
7
8
9
10
0
0
1
2
3
4
5
6
7
8
9
10
0
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE (V)
LT1121-3.3
Ground Pin Current
1121 G10
INPUT VOLTAGE (V)
LT1121-5
Ground Pin Current
1121 G11
INPUT VOLTAGE (V)
LT1121
Ground Pin Current
1121 G12
T J = 25 ° C
10
9
T J = 25 ° C
10
9
T J = 25 ° C
10
9 V OUT = V ADJ
8
7
6
5
4
3
2
R LOAD = 22 Ω
I LOAD = 150mA*
R LOAD = 33 Ω
I LOAD = 100mA*
R LOAD = 66 Ω
I LOAD = 50mA*
8
7
6
5
4
3
2
R LOAD = 33 Ω
I LOAD = 150mA*
R LOAD = 50 Ω
I LOAD = 100mA*
R LOAD = 100 Ω
I LOAD = 50mA*
8
7
6
5
4
3
2
R LOAD = 25 Ω
I LOAD = 150mA*
R LOAD = 38 Ω
I LOAD = 100mA*
R LOAD = 75 Ω
I LOAD = 50mA*
1
0
0
1
2
*FOR V OUT = 3.3V
3 4 5 6
7
8
9
10
1
0
0
1
2
3
*FOR V OUT = 5V
4 5 6 7
8
9
10
1
0
0
1
2
3
*FOR V OUT = 3.75V
4 5 6 7
8
9
10
INPUT VOLTAGE (V)
Ground Pin Current
1121 G13
INPUT VOLTAGE (V)
Shutdown Pin Threshold
(On-to-Off)
1121 G14
INPUT VOLTAGE (V)
Shutdown Pin Threshold
(Off-to-On)
1121 G15
12 V
14
V IN = 3.3V (LT1121-3.3)
V IN = 5V (LT1121-5)
IN = 3.75V (LT1121)
DEVICE IS OPERATING
10 IN DROPOUT
2.0
1.8
1.6
1.4
I LOAD = 1mA
2.0
1.8
1.6
1.4
I LOAD = 150mA
8
6
4
T J = 25 ° C
T J = 125 ° C
T J = –55 ° C
1.2
1.0
0.8
0.6
1.2
1.0
0.8
0.6
I LOAD = 1mA
2
0.4
0.2
0.4
0.2
0
0
20
40 60 80 100 120 140 160
OUTPUT CURRENT (mA)
0
–50
–25
0 25 50 75
TEMPERATURE ( ° C)
100
125
0
–50
–25
0 25 50 75
TEMPERATURE ( ° C)
100
125
1121 G16
1121 G17
1121 G18
1121fg
6
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