www.德州仪器.com
V
SW
5 v/div
V
O
20 mv/div
I
L
200 毫安/div
V
I
= 3.6 v,
V
O
= 1.5 v,
I
O
= 400 毫安
250 ns/div
V
I
= 3.6 v,
V
O
= 1.5 v
V
SW
,
5 v/div
V
O
,
20 mv/div
I
L
,
200 毫安/div
5
µ
s/div
使能
2 v/div
V
O
1 v/div
I
i
200 毫安/div
开始-向上
250
µ
s/div
V
I
= 3.6 v,
V
O
= 1.5 v,
I
O
= 380 毫安
tps62220,tps62221,tps62222
tps62223,tps62224
tps62228,tps62229
SLVS491C–SEPTEMBER2003–REVISEDSEPTEMBER2004
pwmmodeoperationpower-savemodeoperation
figure11.figure12.
figure13.
9