RT8003
Quiescent Current vs. Input Voltage
300
250
200
150
100
50
0
2.5
3
3.5
4
4.5
5
5.5
Quiescent Current vs. Temperature
250
V
FB
=
0.65V
V
IN
= 3.3V, V
FB
=
0.65V
Quiescent Current (μA)
Quiescent Current (μA)
200
150
100
50
0
-50
-25
0
25
50
75
100
125
Input Voltage(V)
Temperature
(°C)
V
REF
vs. Temperature
0.52
0.515
0.51
0.52
0.515
0.51
V
REF
vs. Input Voltage
V
REF
(V)
0.505
0.5
0.495
0.49
0.485
0.48
-50
-25
0
25
50
75
100
125
V
REF
(V)
0.505
0.5
0.495
0.49
0.485
0.48
2.5
3
3.5
4
4.5
5
5.5
Temperature
(°C)
Input Voltage (V)
Current Limit vs. Input Voltage
3
2.5
Load Transient Response
V
IN
= 3.3V, V
OUT
= 1.2V
I
OUT
= 50mA to 600mA
Current Limit (A)
2
1.5
1
0.5
0
2.5
3
3.5
4
4.5
5
5.5
Output
Voltage
(50mV/Div)
Load
Current
(200mA/Div)
Input Voltage (V)
Time (250μs/Div)
DS8003-08 March 2011
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
