RT7275/76
Typical Operating Characteristics
Efficiency vs. Load Current
Efficiency vs. Load Current
100
90
80
70
60
50
40
30
20
10
0
100
RT7275
RT7276
90
80
VOUT = 5V
VOUT = 2.5V
VOUT = 1.05V
70
VOUT = 5V
VOUT = 2.5V
VOUT = 1.05V
60
50
40
30
20
10
VIN = 12V
10
VIN = 12V
10
0
0.001
0.01
0.1
1
0.001
0.01
0.1
1
Load Current (A)
Load Current (A)
Output Voltage vs. Load Current
Output Voltage vs. Load Current
1.048
1.09
1.08
1.07
1.06
1.05
1.04
1.03
1.02
1.01
RT7275
RT7276
1.046
1.044
1.042
1.040
1.038
VIN = 17V
VIN = 12V
VIN = 17V
VIN = 12V
VIN = 5V
VIN = 5V
VOUT = 1.05V
2.5 3
VOUT = 1.05V
2.5 3
0
0.5
1
1.5
2
0
0.5
1
1.5
2
Load Current (A)
Load Current (A)
Switching Frequency vs. Load Current
Switching Frequency vs. Output Current
800
750
700
650
600
900
800
700
600
500
400
300
200
100
0
RT7275
RT7276
VIN = 17V
VIN = 12V
VIN = 5V
VIN = 5V
VIN = 12V
VIN = 17V
VOUT = 1.05V
VOUT = 1.05V
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
Output Current (A)
Output Current (A)
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS7275/76-00 January 2013
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
