LTC3458
典型PERFOR一个CE特征
固定频率（ FF ）
连续电流
固定频率（ FF ）
连续电流
SW
2V/DIV
SW
2V/DIV
I
L
100mA/DIV
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
200ns/DIV
过电流1.5A与我
极限
V
OUT
100mV/DIV
SW
2V/DIV
SW
5V/DIV
I
L
0.5A/DIV
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
R
ILIM
= 133k
突发模式工作特写
V
OUT
100mV/DIV
SW
5V/DIV
I
L
200mA/DIV
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
C
OUT
= 22F
C
FF
= 22pF的
2s/DIV
ü W
1s/DIV
I
L
200mA/DIV
0mA
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
200ns/DIV
0mA
突发模式工作
I
L
200mA/DIV
0mA
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
C
OUT
= 22F
C
FF
= 22pF的
50s/DIV
0mA
软启动为50Ω负载
V
OUT
2V/DIV
V
IN
2V/DIV
SS
200mV/DIV
I
L
200mA/DIV
0mA
V
IN
= 3.3V
V
OUT
= 7V
L = 10μH
5ms/DIV
3458f
5
