
RT9198/A
7
DS9198/A-10 November 2006
www.richtek.com
Time (100
μ
s/Div)
C
IN
= C
OUT
= 1uF
Line Transient Response
O
D
I
D
I
LOAD
= 50mA
5
4
3
20
0
-20
Time (100
μ
s/Div)
V
IN
= 3.3V
C
IN
= C
OUT
= 1uF
Load Transient Response
O
D
L
(
V
OUT
= 1.5V
I
LOAD
= 1mA to 50mA
100
50
0
50
0
-50
Time (100
μ
s/Div)
V
IN
= 3.3V
C
IN
= C
OUT
= 1uF
Load Transient Response
O
D
L
(
V
OUT
= 1.5V
I
LOAD
= 1mA to 250mA
400
200
0
50
0
-50
Time (100
μ
s/Div)
C
IN
= C
OUT
= 1uF
Line Transient Response
O
D
I
D
I
LOAD
= 250mA
5
4
3
50
0
-50
Time (1ms/Div)
RT9198-18, V
IN
= 5V
C
IN
= C
OUT
= 1uF
EN Pin Shutdown Response
E
(
O
(
V
OUT
= 1.8V
I
LOAD
= 1mA
10
5
0
2
1
0
Time (10
μ
s/Div)
RT9198-18, V
IN
= 5V
C
IN
= C
OUT
= 1uF
Start Up
E
(
O
(
V
OUT
= 1.8V
I
LOAD
= 1mA
10
5
0
2
1
0