RT7266
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
1.07
Output Voltage vs. Output Current
Efficiency (%)
70
60
50
40
30
20
10
0
0
0.5
1
1.5
2
2.5
3
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 1.05V
Output Voltage (V)
1.06
1.05
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 17V
1.04
V
IN
= 12V
1.03
0
0.5
1
1.5
2
V
OUT
= 1.05V
2.5
3
Output Current (A)
Output Current (A)
Output Voltage vs. Input Voltage
1.07
Frequency vs. Input Voltage
900
800
Output Voltage (V)
Frequency (kHz)1
1.06
700
1.05
1.04
I
OUT
=
I
OUT
=
I
OUT
=
I
OUT
=
0A
1A
2A
3A
V
OUT
= 1.05V
600
500
V
OUT
= 1.05V, I
LOAD
= 0.1A
400
18
1.03
4
6
8
10
12
14
16
4
6
8
10
12
14
16
18
Input Voltage (V)
Input Voltage (V)
Reference Voltage vs. Temperature
0.780
0.775
0.770
0.765
0.760
0.755
0.780
0.775
0.770
0.765
0.760
0.755
Reference Voltage vs. Input Voltage
Reference Voltage (V)
V
IN
= 17V
V
IN
= 12V
V
IN
= 4.5V
No Load, V
OUT
= 1.05V
0.750
-50
-25
0
25
50
75
100
125
0.750
4
6
8
10
Reference Voltage (V)
No Load, V
OUT
= 1.05V
12
14
16
18
Temperature (°C)
Input Voltage (V)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS7266-02
September 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
