RT8298
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
3.32
3.33
Output Voltage vs. Input Voltage
Efficiency (%)
70
60
50
40
30
20
10
0
0
1
2
Output Voltage (V)
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
3.31
3.30
3.29
3.28
V
OUT
= 3.3V
3.27
V
IN
= 4.5V to 24V, V
OUT
= 3.3V, I
OUT
= 0A
6
4
6
8
10
12
14
16
18
20
22
24
3
4
5
Output Current (A)
Input Voltage (V)
Output Voltage vs. Temperature
3.40
3.38
3.36
3.40
3.38
3.36
Output Voltage vs. Output Current
Output Voltage (V)
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
-50
-25
0
25
50
75
100
125
Output Voltage (V)
3.34
3.32
3.30
3.28
3.26
3.24
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 0A
3.22
3.20
0
0.5
1
1.5
2
2.5
3
3.5
4
V
OUT
= 3.3V
4.5
5
5.5
6
Temperature (°C)
Output Current (A)
Switching Frequency vs. Input Voltage
650
650
Switching Frequency vs. Temperature
Switching Frequency (kHz)
1
640
630
620
610
600
590
580
570
560
550
Switching Frequency (kHz)
1
640
630
620
610
600
590
580
570
560
550
4
6
8
10
12
14
16
18
20
22
24
V
OUT
= 3.3V, I
OUT
= 0A
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 0A
-50
-25
0
25
50
75
100
125
Input Voltage (V)
Copyright
©
2011 Richtek Technology Corporation. All rights reserved.
Temperature (°C)
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS8298-01
November 2011