RT8073
Typical Operating Characteristics
Efficiency vs. Load Current
100
90
80
1.20
1.18
1.16
Output Voltage vs. Input Voltage
Efficiency (%)
70
60
50
40
30
20
10
0
0.001
0.01
Output Voltage (V)
V
IN
= 3.3V
V
IN
= 4V
V
IN
= 5V
1.14
1.12
1.10
1.08
1.06
1.04
V
OUT
= 1.1V
0.1
1
10
1.02
1.00
2.5
3
3.5
4
4.5
V
OUT
= 1.1V
5
5.5
Load Current (A)
Input Voltage (V)
Output Voltage vs. Temperature
1.16
1.15
1.18
1.16
Output Voltage vs. Output Current
Output Voltage (V)
1.14
1.13
1.12
1.11
1.10
1.09
1.08
1.07
1.06
-50
-25
0
25
50
75
100
125
1.04
Output Voltage (V)
1.14
1.12
1.10
1.08
1.06
V
IN
= 5V
V
IN
= 4V
V
IN
= 3.3V
V
OUT
= 1.1V
V
IN
= 5V, V
OUT
= 1.1V, I
OUT
= 1.5A
1.02
0.0
0.6
1.2
1.8
2.4
3.0
3.6
4.2
4.8
5.4
6.0
Temperature (°C)
Output Current (A)
Frequency vs. Input Voltage
1.8
1.8
Switching Frequency vs. Temperature
Switching Frequency (MHz)
1
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.7
Frequency (MHz)1
1.6
1.5
1.4
1.3
1.2
1.1
V
OUT
= 1.1V, I
OUT
= 1.3A
1.0
2.5
3
3.5
4
4.5
5
5.5
1.0
-50
-25
0
25
V
OUT
= 1.1V, I
OUT
= 1.3A
50
75
100
125
Input Voltage (V)
Temperature (°C)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS8073-01
November 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
