参数资料
型号: LTC3632IDD#PBF
厂商: Linear Technology
文件页数: 5/22页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 20MA 8DFN
标准包装: 121
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:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 8-DFN-EP(3x3)
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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