RT2652
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
100
90
Efficiency vs. Output Current
Efficiency (%)
Efficiency (%)
70
60
50
40
30
20
10
0
0.001
0.01
V
IN
= 5V, V
OUT
= 3.3V
V
IN
= 5V, V
OUT
= 1.2V
V
IN
= 3.3V, V
OUT
= 1.2V
80
70
60
50
40
30
20
V
IN
= 5V, V
OUT
= 3.3V
V
IN
= 3.3V, V
OUT
= 1.2V
V
IN
= 5V, V
OUT
= 1.2V
I
OUT
= 0 to 2A
0.1
1
10
10
0
0
0.25
0.5
0.75
1
1.25
I
OUT
= 0 to 2A
1.5
1.75
2
Output Current (A)
Output Current (A)
Output Voltage vs. Output Current
1.220
1.215
3.38
3.37
Output Voltage vs. Output Current
Output Voltage (V)
1.210
1.205
1.200
1.195
1.190
1.185
Output Voltage (V)
3.36
3.35
3.34
3.33
V
IN
= 5V
V
IN
= 3.3V
V
OUT
= 1.2V, I
OUT
= 0 to 2A
1.180
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
3.32
0
0.2
0.4
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 0 to 2A
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Output Current (A)
Output Current (A)
Switching Frequency vs. Temperature
1.6
1.6
Switching Frequency vs. Temperature
Switching Frequency (MHz)
1
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-50
-25
0
Switching Frequency (MHz)
1
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-50
-25
0
25
50
75
100
125
V
IN
= 3.3V
V
IN
= 5V
V
OUT
= 1.2V, I
OUT
= 0.6A
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 0.6A
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS2652-00
November 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
