参数资料
| 型号： | LT3080IT#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.1A TO-220-5 |
| 标准包装： | 50 |
| 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： | 通孔 |
| 封装/外壳： | TO-220-5 成形引线 |
| 供应商设备封装： | TO-220-5 |
| 包装： | 管件 |
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LT3080
TYPICAL PERFORMANCE CHARACTERISTICS
V CONTROL Pin Current
V CONTROL Pin Current
Residual Output Voltage with
Less Than Minimum Load
25
20
15
10
5
I LOAD = 1.1A
I LOAD = 1m A
DEVICE IN
CURRENT LIMIT
30
25
20
15
10
5
V CONTROL – V OUT = 2V
V IN – V OUT = 1V
T J = –50°C
T J = 125°C
T J = 25°C
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
SET PIN = 0V
V IN V OUT
R TEST
V IN = 10V
V IN = 20V
V IN = 5V
0
0
6
12 18 24
30
36*
0
0
0.2
0.4 0.6 0.8
1.0
1.2
0
0
1k
2k
INPUT-TO-OUTPUT DIFFERENTIAL (V)
LOAD CURRENT (A)
R TEST ( )
*SEE NOTE 9 IN ELECTRICAL
CHARACTERISTICS TABLE
3080 G19
3080 G20
3080 G21
100
Ripple Rejection, Single Supply
100
Ripple Rejection, Dual Supply,
V CONTROL Pin
100
Ripple Rejection, Dual Supply,
IN Pin
90
90
90
80
70
60
I LOAD = 1.1 A
I LOAD = 100mA
80
70
60
I LOAD = 1.1A
I LOAD = 100mA
80
70
60
50
40
50
40
50
40
20 V
30
20 V IN = V CONTROL = V OUT (NOMINAL) + 2V
10 RIPPLE = 50mV P-P
C OUT = 2.2μF CERAMIC
0
10 100 1k 10k 100k
1M
30
V IN = V OUT (NOMINAL) + 1V
CONTROL = V OUT (NOMINAL) +2V
10 C OUT = 2.2μF CERAMIC
RIPPLE = 50mV P-P
0
10 100 1k 10k 100k
1M
30
20
10
0
V IN = V OUT (NOMINAL) + 1V
V CONTROL = V OUT (NOMINAL) +2V
RIPPLE = 50mV P-P
C OUT = 2.2μF CERAMIC
I LOAD = 1.1A
10 100 1k 10k
100k
1M
FREQUENCY (Hz)
3080 G22
Ripple Rejection (120Hz)
80
79
78
77
76
75
74
FREQUENCY (Hz)
10k
1k
100
3080 G23
Noise Spectral Density
FREQUENCY (Hz)
1k
100
10
3080 G24
V IN = V OUT(NOMINAL) + 2V
RIPPLE = 500mV P-P , f = 120Hz
73 SINGLESUPPLYOPERATION
72
71 I LOAD = 1.1A
C SET = 0.1μF, C OUT = 2.2μF
70
–50 –25 0 25 50 75
100 125 150
10
1
10
100
1k
10k
1.0
0.1
100k
TEMPERATURE (°C)
3080 G25
FREQUENCY (Hz)
3080 G26
3080fc
7
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