LT3976
典型性能特性
启动/压差性能
V
IN
1V/DIV
V
IN
V
OUT
V
IN
1V/DIV
T
A
= 25 ℃，除非另有说明。
启动/压差性能
V
IN
V
OUT
V
SW
5V/DIV
I
L
0.5A/DIV
V
OUT
10mV/DIV
突发模式的开关波形
V
OUT
1V/DIV
V
OUT
1V/DIV
2.5 LOAD
100ms/DIV
（ 2A IN规管）
3976 G33
1K负载
100ms/DIV
（ 5mA，在规管）
3976 G34
V
IN
= 12V
V
OUT
= 3.3V
I
负载
= 20mA下
C
OUT
= 47F
5s/DIV
3976 G35
全频切换
波形
V
SW
5V/DIV
I
L
1A/DIV
V
OUT
20mV/DIV
V
IN
= 12V
V
OUT
= 3.3V
I
负载
= 1A
C
OUT
= 47F
1s/DIV
3976 G36
差的开关波形
V
SW
2V/DIV
I
L
1A/DIV
V
OUT
50mV/DIV
V
IN
= 5V
5s/DIV
V
OUT
设置5V
I
负载
= 0.5A
C
OUT
= 47F
3976 G37
负载瞬态： 0.5A至4.5A
I
L
2A/DIV
I
L
2A/DIV
负载瞬态： 10mA至4A
V
OUT
200mV/DIV
12V
IN
3.3V
OUT
C
OUT
= 2
×
47F
50s/DIV
3976 G38
V
OUT
500mV/DIV
12V
IN
3.3V
OUT
C
OUT
= 2
×
47F
50s/DIV
3976 G39
3976f
8
欲了解更多信息
www.linear.com/3976
