参数资料
型号: LT3970HMS-5#PBF
厂商: Linear Technology
文件页数: 7/22页
文件大小: 0K
描述: IC REG BUCK 5V 0.35A 10MSOP
标准包装: 50
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 4.2 V ~ 40 V
PWM 型: 电流模式,Burst Mode?
频率 - 开关: 200kHz ~ 2.25MHz
电流 - 输出: 350mA
同步整流器:
工作温度: -40°C ~ 150°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
LT3970 Series
TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C, unless otherwise noted.
92
91
90
Power Good Threshold
1.050
1.025
1.000
EN Threshold
V OUT
100mV/DIV
I L
100mA/DIV
Transient Load Response; Load
Current is Stepped from 10mA
(Burst Mode Operation) to 110mA
89
0.975
100μs/DIV
FRONT PAGE APPLICATION
V IN = 12V
V OUT = 5V
3970 G27
88
–50 –25
0
25 50
75 100 125 150
0.950
–50 –25
0
25 50
75 100 125 150
TEMPERATURE (°C)
3970 G25
TEMPERATURE (°C)
3970 G26
V OUT
100mV/DIV
I L
100mA/DIV
Transient Load Response; Load
Current is Stepped from 100mA
to 200mA
V SW
5V/DIV
I L
100mA/DIV
V OUT
5mV/DIV
Switching Waveforms,
Burst Mode Operation
V SW
5V/DIV
I L
200mA/DIV
V OUT
5mV/DIV
Switching Waveforms, Full
Frequency Continuous Operation
100μs/DIV
3970 G28
2μs/DIV
3970 G29
1μs/DIV
3970 G30
7
FRONT PAGE APPLICATION
V IN = 12V
V OUT = 5V
FRONT PAGE APPLICATION
V IN = 12V
V OUT = 5V
I LOAD = 10mA
FRONT PAGE APPLICATION
V IN = 12V
V OUT = 5V
I LOAD = 350mA
3970fc
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