NCP1508
2
V
in
= 3.6 V
V
OUT
= 1.5 V
PWM
T
A
= 25°C
V
OUT
(V)
2
V
in
= 3.6 V
V
OUT
= 1.5 V
PWM
T
A
= 25°C
1.5
V
OUT
(V)
1.5
1
1
0.5
0.5
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
V
SHD
(V)
V
CB
(V)
图16.输出电压与关断引脚
电压
CB引脚图17.过渡高度层
1
ms /格
1
ms /格
图18.轻载PWM开关波形
(V
in
= 3.6 V, V
OUT
= 1.5 V，I
OUT
= 30 mA）的
图19.重载PWM开关波形
(V
in
= 3.6 V, V
OUT
= 1.5 V，I
OUT
= 300 mA）的
VSHDN
1V/div
0
VOUT
0.5V/div
0
1
ms /格
500
ms /格
图20.脉冲模式切换波形
(V
in
= 3.6 V, V
OUT
= 1.5 V，I
OUT
= 30 mA）的
图21.软启动
(V
in
= 3.6 V, V
OUT
= 1.5 V，I
OUT
= 150 mA）的
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