参数资料
型号: LT1963AMPQ#TRPBF
厂商: Linear Technology
文件页数: 11/28页
文件大小: 0K
描述: IC REG LDO ADJ 1.5A 5-DD
产品培训模块: More Information on LDOs
标准包装: 750
稳压器拓扑结构: 正,可调式
输出电压: 1.21 V ~ 20 V
输入电压: 2.1 V ~ 20 V
电压 - 压降(标准): 0.34V @ 1.5A
稳压器数量: 1
电流 - 输出: 1.5A
电流 - 限制(最小): 1.6A
工作温度: -55°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-263-6,D²Pak(5 引线+接片),TO-263BA
供应商设备封装: D2PAK-5
包装: 带卷 (TR)
LT1963A Series
TYPICAL PERFORMANCE CHARACTERISTICS
80
Ripple Rejection
76
Ripple Rejection
3.0
LT1963A Minimum Input Voltage
70
60
50
40
30
20
C OUT = 100μF TANTALUM
+10 × 1μF CERAMIC
C OUT = 10μF TANTALUM
74
72
70
68
66
2.5
2.0
1.5
1.0
I L = 1.5A
I L = 100mA
I L = 500mA
62
10 I L = 0.75A
V IN = V OUT(NOMINAL) +1V + 50mV RMS RIPPLE
0
10 100 1k 10k 100k 1M
64 I L = 0.75A
V IN = V OUT(NOMINAL) +1V + 0.5V P-P
RIPPLE AT f = 120Hz
–50 –25 0 25 50 75
100
125
0.5
0
–50 –25
0
25
50
75
100
125
FREQUENCY (Hz)
Load Regulation
1963A G31
TEMPERATURE (°C)
1963A G32
TEMPERATURE (°C)
Output Noise Spectral Density
1963A G33
10
5
0
LT1963A-1.5
LT1963A
1.0
C OUT = 10μF
I L =1.5A
–5
LT1963A-1.8
LT1963A-2.5
0.1
LT1963A-3. 3
LT1963A-2. 5
–10
L T1963A-3.3
–15
LT1963A-1.8
–20
V IN = V OUT(NOMINAL) +1V
(LT1963A-1.8/-2.5/-3.3)
V IN = 2.7V (LT1963A/LT1963A-1.5)
Δ I L = 1mA TO 1.5A
–50 –25 0 25 50 75
100
125
0.01
10
100 1k 10k
LT1963A-1.5
LT1963A
100k
TEMPERATURE (°C)
RMS Output Noise vs Load
Current (10Hz to 100kHz)
1963A G34
FREQUENCY (Hz)
1963A G35
LT1963A-3.3 10Hz to 100kHz Output Noise
50
45
40
35
30
C OUT = 10μF
LT1963A-3.3
LT1963A-2.5
25
20
15
10
5
LT1963A-1.8
LT1963A-1.5
LT1963A
V OUT
100μV/DIV
0
0.0001
0.001
0.01 0.1
LOAD CURRENT (A)
1
10
C OUT = 10μF
I LOAD = 1.5A
1ms/DIV
1963A G37
1963A G36
11
For more information www.linear.com/LT1963A
1963aff
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