RT8101/A
Preliminary
Typical Operating Characteristics
Efficiency vs. Output Current
1.00
100
0.8064
0.8043
Reference Voltage vs. Temperature
Reference Voltage (V)
0.95
95
RT8101
0.8022
0.8001
0.7980
0.7959
0.7938
0.7917
Efficiency (%)
0.90
90
0.85
85
RT8101A
0.80
80
0.75
75
V
CC
= 12V
V
IN
= 5V
0
2.5
5
7.5
10
12.5 15 17.5 20 22.5 25
V
CC
= 12V
V
IN
= 5V
-50
-25
0
25
50
75
100
125
Output Current (A)
Temperature
(°C)
Output Voltage vs. Output Current
2.55
2.54
2.53
Output Voltage vs. Output Current
2.55
2.54
2.53
RT8101
RT8101A
Output Voltage (V)
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
0
2.5
5
7.5
10
12.5 15
17.5 20 22.5 25
Output Voltage (V)
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
0
2.5
5
7.5
10
12.5 15 17.5 20 22.5 25
V
IN
= 12V
V
IN
= 5V
V
IN
= 12V
V
IN
= 5V
Output Current (A)
Output Current (A)
Frequency vs. Temperature
325
320
Frequency vs. Temperature
640
620
RT8101
RT8101A
315
Frequency (kHz)
310
305
300
295
290
Frequency (kHz)
-40
-10
20
50
80
110
140
600
580
560
540
285
280
520
-40
-10
20
50
80
110
140
Temperature
(°C)
Temperature
(°C)
www.richtek.com
6
DS8101/A-01 March 2007
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
