参数资料
型号: LT1965IT#PBF
厂商: Linear Technology
文件页数: 9/22页
文件大小: 0K
描述: IC REG LDO ADJ 1.1A TO220-5
产品培训模块: LT1965 - 1.1A, Low Noise, Low Dropout Linear Regulator
More Information on LDOs
标准包装: 50
稳压器拓扑结构: 正,可调式
输出电压: 1.2 V ~ 19.5 V
输入电压: 1.8 V ~ 20 V
电压 - 压降(标准): 0.31V @ 1.1A
稳压器数量: 1
电流 - 输出: 1.1A
电流 - 限制(最小): 1.2A
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
LT1965 Series
TYPICAL PERFORMANCE CHARACTERISTICS
SHDN Pin Input Current
SHDN Pin Input Current
ADJ Pin Bias Current
6
5
4
3
2
1
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
V SHDN = 20V
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
2
4
6 8 10 12 14 16 18 20
SHDN PIN VOLTAGE (V)
1965 G27
5.0
–50 –25
0
25 50 75
TEMPERATURE (°C)
100 125 150
1965 G28
0
–50 –25
0
25 50 75
TEMPERATURE (°C)
100 125 150
1965 G29
Current Limit vs V IN – V OUT
Current Limit vs Temperature
Reverse-Output Current
2.5
2.0
1.5
T J = 125°C
?V OUT = 100mV
T J = –50°C
T J = 25°C
3.0
2.5
2.0
V IN = 7V
V OUT = 0V
6
5
4
T J = 25°C
V IN = 0V
V OUT = V ADJ (LT1965)
V OUT = V SENSE
(LT1965-1.5/-1.8/-2.5/-3.3)
CURRENT FLOWS INTO
OUTPUT PIN
LT1965
1.0
0.5
T J = 150°C
1.5
1.0
0.5
3
2
1
LT1965-1.5
LT1965-1.8
LT1965-2.5
0
0
2
4
6
8
10 12 14 16 18
20
0
–50 –25
0
25
50
75
100 125 150
0
0
1
2
3
LT1965-3.3
4 5 6
7
8
9
INPUT/OUTPUT DIFFERENTIAL (V)
1965 G30
TEMPERATURE (°C)
1965 G31
OUTPUT VOLTAGE (V)
1965 G32
Reverse-Output Current
Ripple Rejection vs Frequency
0.6
0.5
0.4
0.3
0.2
V IN = 0V
V OUT = 1.2V (LT1965)
V OUT = 1.5V (LT1965-1.5)
V OUT = 1.8V (LT1965-1.8)
V OUT = 2.5V (LT1965-2.5)
V OUT = 3.3V (LT1965-3.3)
LT1965-1.5/-1.8/-2.5/-3.3
LT1965
90
80
70
60
50
40
30
0.1
0
–50 –25
0
25 50 75
TEMPERATURE (°C)
100 125 150
1965 G33
20 I L = 0.75A
C OUT = 10μF CERAMIC
10 V IN = V OUT(NOMINAL)
+ 1V + 50mV RMS RIPPLE
0
10 100 1k 10k
FREQUENCY (Hz)
100k
1M
1965 G34
9
For more information www.linear.com/LT1965
1965fb
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