参数资料
型号: LT3502IMS#PBF
厂商: Linear Technology
文件页数: 5/24页
文件大小: 0K
描述: IC REG BUCK ADJ 0.5A 10MSOP
标准包装: 50
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 36 V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式
频率 - 开关: 1.1MHz
电流 - 输出: 500mA
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: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
供应商设备封装: 10-MSOP
LT3502/LT3502A
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise noted)
3.5
UVLO
2.5
Switching Frequency
0.9
Soft-Start ( SHDN )
3.0
2.5
2.0
1.5
1.0
0.5
2.0
1.5
1.0
0.5
LT3502A
LT3502
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
–50
0
50
100
150
0
–50
0
50
100
150
–0.1
0
200 400 600 800 1000 1200 1400 1600
300
TEMPERATURE (°C)
SHDN Pin Current
3502 G10
1.0
TEMPERATURE (°C)
Switch Current Limit
3502 G11
1.2
SHDN PIN VOLTAGE (mV)
Switch Current Limit
3502 G12
250
0.9
0.8
SW PEAK CURRENT LIMIT
1.0
200
150
100
50
0.7
0.6
0.5
0.4
0.3
0.2
0.1
DA VALLEY CURRENT LIMIT
0.8
0.6
0.4
0.2
LT3502
LT3502A
0
0
5
10
15
20
25
30
35
40
45
0
–50
0
50
100
150
0
0
50
100
45
SHDN PIN VOLTAGE (V)
3502 G13
LT3502A Maximum V IN for Full
Frequency (V OUT = 3.3V)
45
TEMPERATURE (°C)
3502 G14
LT3502A Maximum V IN for Full
Frequency (V OUT = 5V)
45
DUTY CYCLE (%)
LT3502 Maximum V IN for Full
Frequency (V OUT = 3.3V)
3502 G15
40
T A = 25°C
40
40
35
30
25
20
T A = 85°C
35
30
25
20
T A = 25°C
T A = 85°C
35
30
25
20
T A = 25°C
T A = 85°C
15
10
5
15
10
5
15
10
5
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
5
LOAD CURRENT (A)
3502 G16
LOAD CURRENT (A)
3502 G17
LOAD CURRENT (A)
3502 G18
3502fd
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