参数资料
型号: LT3022IMSE-1.8#TRPBF
厂商: Linear Technology
文件页数: 9/20页
文件大小: 0K
描述: IC REG LDO 1.8V 1A 16-MSOP
标准包装: 2,500
稳压器拓扑结构: 正,固定式
输出电压: 1.8V
输入电压: 最高 10V
电压 - 压降(标准): 0.145V @ 1A
稳压器数量: 1
电流 - 输出: 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: 16-TFSOP(0.118",3.00mm 宽)裸露焊盘
供应商设备封装: 16-MSOP,裸露焊盘
包装: 带卷 (TR)
LT3022/LT3022-1.2
LT3022-1.5/LT3022-1.8
TYPICAL PERFORMANCE CHARACTERISTICS
Input Ripple Rejection
Line Regulation
Load Regulation
100
90
80
70
60
50
40
0.5
0.3
0.1
–0.1
–0.3
–0.5
–0.7
? V IN = 1.15V TO 10V
V OUT = 0.2V
I L = 1mA
1.0
0.8
0.6
0.4
0.2
0
–0.2
V IN = 1.15V
V OUT = 0.5V
? I L = 1mA TO 1A
LOAD REGULATION NUMBER REFERS
TO CHANGE IN THE 200mV REFERENCE
VOLTAGE
V IN = 1.5V + 0.5V P-P RIPPLE AT 120Hz
V OUT = 0.5V
30
20
0
10 C OUT = 10μF
I L = 1A
–50 –25 0 25 50 75 100
125
–0.9
–1.1
–1.3
–1.5
–50
–25
0
25
50
75
100
125
–0.4
–0.6
–0.8
–1.0
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
No-Load Recovery Threshold
3022 G23
TEMPERATURE (°C)
No-Load Recovery Threshold
3022 G24
TEMPERATURE (°C)
Output Noise Spectral Density
3022 G25
30
25
T J = 25°C
12
10
10
V OUT = 1.2V
I L = 1A
T J = 25°C
1
20
15
8
6
I OUT(SINK) = 5mA
I OUT(SINK) = 1mA
0.1
C OUT = 10μF
C OUT = 47μF
10
5
4
2
0.01
0
0
5 10 15
20
0
–50 –25
0
25
50
75
100
125
0.001
10
100
1k 10k
100k
1M
OUTPUT OVERSHOOT (%)
RMS Output Noise vs Load
Current (10Hz to 100kHz)
3022 G26
TEMPERATURE (°C)
Start-Up from Shutdown
3022 G27
FREQUENCY (Hz)
Transient Response
3022 G28
200
180
160
140
V OUT = 1.2V
C OUT = 10μF
T J = 25°C
V OUT
0.5V/DIV
V OUT
50mV/DIV
120
100
80
60
V SHDN
1V/DIV
I OUT
500mA/DIV
40
20
0
0.01
0.1
1 10 100
LOAD CURRENT (mA)
1000
R L = 1.2
V IN = 1.5V
V OUT = 1.2V
C OUT = 10μF
50μs/DIV
3022 G30
V IN = 1.5V 50μs/DIV
V OUT = 1.2V
I OUT = 100mA to 1A
C OUT = 22μF
t RISE = t FALL = 100ns
3022 G31
3022 G29
3022fb
9
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