参数资料
型号: LT1764AET#31PBF
厂商: Linear Technology
文件页数: 7/20页
文件大小: 0K
描述: IC REG LDO ADJ 3A TO220-5
标准包装: 50
稳压器拓扑结构: 正,可调式
输出电压: 1.21 V ~ 20 V
输入电压: 2.7 V ~ 20 V
电压 - 压降(标准): 0.34V @ 3A
稳压器数量: 1
电流 - 输出: 3A
电流 - 限制(最小): 3.1A
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
LT1764A Series
TYPICAL PERFOR A CE CHARACTERISTICS
LT1764A-2.5 GND Pin Current
LT1764A-3.3 GND Pin Current
LT1764A GND Pin Current
200
160
120
T J = 2 5 ° C
V SHDN = V IN
*FOR V OUT = 2.5V
R L = 0.83 ?
I L = 3A*
200
160
120
T J = 2 5 ° C
V SHDN = V IN
*FOR V OUT = 3.3V
R L = 1.1 ?
I L = 3A*
150
120
90
R L = 0.4 ?
I L = 3A*
T J = 2 5 ° C
V SHDN = V IN
*FOR V OUT = 1.21V
80
40
R L = 1.66 ?
I L = 1.5A*
R L = 3.57 ?
I L = 0.7A*
80
40
R L = 2.2 ?
I L = 1.5A*
R L = 4.71 ?
I L = 0.7A*
60
30
R L = 0.81 ?
I L = 1.5A*
R L = 1.73 ?
I L = 0.7A*
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)
GND Pin Current vs I LOAD
1764 G18
INPUT VOLTAGE (V)
SHDN Pin Threshold
(On-to-Off)
1764 G19
INPUT VOLTAGE (V)
SHDN Pin Threshold
(Off-to-On)
1764 G20
160
140
120
100
80
60
V IN = V OUT(NOM) + 1V
1.0
0.9
0.8
0.7
0.6
0.5
0.4
I L = 1mA
1.0
0.9
0.8
0.7
0.6
0.5
0.4
I L = 3A
I L = 1mA
0.3
0.3
40
20
0.2
0.1
0.2
0.1
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
–50 –25
0
25
50
75
100
125
0
–50 –25
0
25
50
75
100
125
OUTPUT CURRENT (A)
SHDN Pin Input Current
1764 G21
TEMPERATURE ( ° C)
SHDN Pin Input Current
1764 G22
TEMPERATURE ( ° C)
ADJ Pin Bias Current
1764 G23
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
V SHDN = 20V
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
0
–50 –25
0
25
50
75
100
125
0
– 50 – 25
0
25
50
75
100
125
SHDN PIN VOLTAGE (V)
1764 G24
TEMPERATURE ( ° C)
1764 G25
TEMPERATURE ( ° C)
1756 G26
1764afb
7
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