RT6908
Typical Operating Characteristics
Boost Efficiency vs. Load Current
Buck1 Efficiency vs. Load Current
100
100
90
80
70
60
50
90
80
70
60
VIN = 12V, VAVDD = 15.6V
1.2 1.6
VIN = 12V, VI/O = 3.3V
50
0
0.4
0.8
2
0
0.4
0.8
1.2
1.6
2
Load Current (A)
Load Current (A)
Buck2 Efficiency vs. Load Current
Boost Output Voltage vs. Load Current
100
90
80
70
60
50
17.0
16.5
16.0
15.5
15.0
14.5
14.0
VIN = 12V, VAVDD = 15.6V
VIN = 12V, VCORE = 1.1V
0
0.4
0.8
1.2
1.6
2
0
0.5
1
1.5
2
Load Current (A)
Load Current (A)
Buck1 Output Voltage vs. Load Current
Buck2 Output Voltage vs. Load Current
3.9
3.6
3.3
3.0
2.7
2.4
1.3
1.2
1.1
1.0
0.9
0.8
VIN = 12V, VI/O = 3.3V
VIN = 12V, VCORE = 1.1V
0
0.5
1
1.5
2
0
0.5
1
1.5
2
Load Current (A)
Load Current (A)
Copyright 2013 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
10
DS6908-01 March 2013
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
