RT8004
VREF Deviation vs. Temperature
Frequency vs. RRT
1.50%
1.00%
0.50%
0.00%
-0.50%
-1.00%
-1.50%
4500
4000
3500
3000
2500
2000
1500
1000
500
VIN = 3.3V
VIN = 3.3V
0
-50
-25
0
25
50
75
100
125
0
200
400
600
800
1000 1200 1400
(°C)
Temperature
RRT (k )
(kٛΩ)
Frequency vs. Input Voltage
Frequency vs. Temperature
1.04
1.032
1.024
1.016
1.008
1
55
R = 309k
VIN = 3.3V
4
4
3
3
22
11
00
--11
-2
-2
-3
-3
--44
--55
0.992
3
3.5
4
4.5
5
5.5
-50
-25
0
25
50
75
100
125
Temperature (°C)
Input Voltage (V)
Peak Current Limited vs. Input Voltage
Quiescent Current vs. Input Voltage
5.5
5.3
5.1
4.9
4.7
4.5
500
450
400
350
300
250
200
150
100
50
VOUT = 2.5V
0
3
3.5
4
4.5
5
5.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
DS8004-03 September 2007
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
