参数资料
型号: LT3080IST#TRPBF
厂商: Linear Technology
文件页数: 6/28页
文件大小: 0K
描述: IC REG LDO ADJ 1.1A SOT223-3
标准包装: 2,500
稳压器拓扑结构: 正,可调式
输出电压: 可调至 36V
输入电压: 1.2 V ~ 36 V
电压 - 压降(标准): 1.35V @ 1.1A
稳压器数量: 1
电流 - 输出: 1.1A
电流 - 限制(最小): 1.1A
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-261-4,TO-261AA
供应商设备封装: SOT-223-3
包装: 带卷 (TR)
LT3080
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage
(Minimum IN Voltage)
Dropout Voltage (Minimum
V CONTROL Pin Voltage)
Dropout Voltage (Minimum
V CONTROL Pin Voltage)
400
350
300
250
200
I LOAD = 1.1A
I LOAD = 500mA
1.6
1.4
1.2
1.0
0.8
T J = –50°C
T J = 25°C
T J = 125°C
1.6
1.4
1.2
1.0
0.8
I LOAD = 1.1A
I LOAD = 1mA
150
0.6
0.6
100
50
I LOAD = 100mA
0.4
0.2
0.4
0.2
0
–50 –25
0
25
50
75
100 125 150
0
0
0.2
0.4
0.6
0.8
1.0
1.2
0
–50 –25
0
25
50
75
100 125 150
TEMPERATURE (°C)
Current Limit
3080 G10
OUTPUT CURRENT (A)
Current Limit
3080 G11
TEMPERATURE (°C)
Load Transient Response
3080 G12
1.6
1.4
1.2
1.0
0.8
0.6
1.6
1.4
1.2
1.0
0.8
0.6
T J = 25°C
SOT-223, DD-PAK
AND TO-220
75
50
25
0
–25
–50
400
V OUT = 1.5V
C SET = 0.1μF
V IN = V CONTROL = 3V
C OUT = 10μF CERAMIC
C OUT = 2.2μF CERAMIC
0.4
0.2 V IN = 7V
V OUT = 0V
0
–50 –25 0
25
50
75
100 125 150
0.4
0.2
0
0
MSOP
AND
DFN
6
12
18
24
30
36*
300
200
100
0
0
5
10 15 20 25 30 35 40 45 50
TEMPERATURE (°C)
INPUT-TO-OUTPUT DIFFERENTIAL (V)
TIME (μs)
150
100
50
0
Load Transient Response
3080 G13
75
50
25
0
*SEE NOTE 9 IN ELECTRICAL
CHARACTERISTICS TABLE
Line Transient Response
3080 G14
5
4
3
2
Turn-On Response
3080 G15
–50
–100
1.2
0.9
0.6
0.3
V IN = V CONTROL = 3V
V OUT = 1.5V
C OUT = 10μF CERAMIC
C SET = 0.1μF
–25
–50
6
5
4
3
V OUT = 1.5V
I LOAD = 10mA
C OUT = 2.2μF
CERAMIC
C SET = 0.1μF
CERAMIC
1
0
2.0
1.5
1.0
0.5
R SET = 100k
C SET = 0
R LOAD = 1
C OUT = 2.2μF CERAMIC
0
0
5
10 15 20 25 30 35 40 45 50
2
0
10 20 30 40 50 60 70 80 90 100
0
0
1
2
3
4
5
6
7
8
9
10
TIME (μs)
3080 G16
TIME (μs)
3080 G17
TIME (μs)
3080 G18
3080fc
6
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