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参数资料
| 型号： | LTC3632IMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20MA 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 50 V |
| 输入电压： | 4.5 V ~ 50 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 20mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP-EP |
LTC3632
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, unless otherwise noted.
60
50
Peak Current Trip Threshold
vs R ISET
V IN = 10V
60
50
Peak Current Trip Threshold
vs Input Voltage
V IN = 10V
I SET OPEN
14
12
Quiescent Supply Current
vs Input Voltage
SLEEP
40
40
10
8
30
30
R SET = 500 k
6
20
10
20
10
I SET = GND
4
2
SHUTDOWN
0
0
200
400
600 800
1000
1200
0
0
5
10 15 20 25 30 35 40 45 50
0
5
15
25 35
45
R ISET (k )
Quiescent Supply Current
vs Temperature
3632 G10
INPUT VOLTAGE (V)
Switch On-Resistance
vs Input Voltage
3632 G11
INPUT VOLTAGE (V)
Switch On-Resistance
vs Temperature
3632 G12
14
12
10
8
V IN = 10V
SLEEP
8
7
6
5
TOP
8
7
6
5
V IN = 10V
TOP
4
6
4
3
BOTTOM
4
2
SHUTDOWN
3
2
BOTTOM
2
1
0
–40
–10
20 50 80
110
1
0
10
20
30
40
50
0
–40
–10
20 50 80
110
TEMPERATURE (°C)
Switch Leakage Current
vs Temperature
3632 G13
INPUT VOLTAGE (V)
RUN Comparator Threshold
Voltage vs Temperature
3632 G14
TEMPERATURE (°C)
Operating Waveforms
3632 G15
0.30
0.25
V IN = 50V
1.30
1.25
RISING
SWITCH
VOLTAGE
20V/DIV
0.20
0.15
0.10
0.05
SW = 50V
SW = 0V
1.20
1.15
1.10
1.05
FALLING
OUTPUT
VOLTAGE
100mV/DIV
INDUCTOR
CURRENT
50mA/DIV
V IN = 48V
V OUT = 5V
I LOAD = 10mA
20μs/DIV
3632 G18
0
–40
–10
20 50
80
110
1.00
–40
–10
20 50 80
110
TEMPERATURE (°C)
3632 G16
TEMPERATURE (°C)
3632 G17
3632fc
5
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