RT7271A
Typical Operating Characteristics
Efficiency vs. Load Current
100%
1000
90%
900
80%
800
70%
700
60%
600
50%
500
40%
400
30%
300
20%
200
10%
100
0%
00
0
1
2
3
4
5
6
100%
1000
90%
900
Efficiency vs. Load Current
Efficiency (%)
Efficiency (%)
V
IN
= 7.4V
V
IN
= 12V
V
IN
= 17V
80%
800
70%
700
60%
600
50%
500
40%
400
30%
300
20%
200
V
IN
= 7.4V
V
IN
= 12V
V
IN
= 17V
V
OUT
= 3.3V
10%
100
0%
00
0
1
2
3
4
V
OUT
= 1.8V
5
6
Load Current (A)
Load Current (A)
Efficiency vs. Load Current
100%
1000
90%
900
1.82
1.82
Output Voltage vs. Load Current
Efficiency (%)
70%
700
60%
600
50%
500
V
IN
= 7.4V
V
IN
= 12V
V
IN
= 17V
Output Voltage (V)
80%
800
1.81
1.81
1.80
1.80
1.79
1.79
400
40%
300
30%
200
20%
100
10%
00
0%
0
1
2
3
4
V
IN
= 17V
V
IN
= 12V
V
IN
= 7.4V
V
OUT
= 1.05V
1.78
5
6
0
1
2
3
4
V
OUT
= 1.8V
5
6
Load Current (A)
Load Current (A)
Current Limit vs. Input Voltage
11.0
10.5
11.0
10.5
Current Limit vs. Temperature
Current Limit (A)
9.5
9.0
8.5
8.0
7.5
Current Limit (A)
10.0
10.0
9.5
9.0
8.5
8.0
7.5
V
IN
= 17V
V
IN
= 12V
V
IN
= 7.4V
V
OUT
= 1.05V
7.0
4
6
8
10
12
14
16
18
20
7.0
-50
-25
0
25
50
V
OUT
= 1.05V
75
100
125
Input Voltage (V)
Temperature (°C)
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7271A-00 February 2013
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
