RT7250A/B
Typical Operating Characteristics
Efficiency vs. Output Current
100
90
80
100
90
80
Efficiency vs. Output Current
Efficiency (%)
60
50
40
30
20
10
0
0.01
0.1
Efficiency (%)
70
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 1.2V
70
60
50
40
30
20
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 1.2V
RT7250A, V
IN
= 12V
1
10
10
0
0.01
0.1
RT7250B, V
IN
= 12V
1
10
Output Current (A)
Output Current (A)
Output Voltage vs. Output Current
3.35
3.34
3.33
3.35
3.34
3.33
Output Voltage vs. Output Current
Output Voltage (V)
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
0.0
0.4
0.8
1.2
1.6
2.0
Output Voltage (V)
3.32
3.31
3.30
3.29
3.28
3.27
RT7250A, V
IN
= 12V, V
OUT
= 3.3V
3.26
3.25
0.0
0.4
RT7250B, V
IN
= 12V, V
OUT
= 3.3V
0.8
1.2
1.6
2.0
Output Current (A)
Output Current (A)
Reference Voltage vs. Temperature
1.00
0.95
1.00
0.95
Reference Voltage vs. Temperature
Reference Voltage (V)
Reference Voltage (V)
RT7250A, V
IN
= 12V, I
OUT
= 0A
0.90
0.85
0.80
0.75
0.70
0.65
0.60
-50
-25
0
25
50
75
100
125
0.90
0.85
0.80
0.75
0.70
0.65
RT7250B, V
IN
= 12V, I
OUT
= 0A
0.60
-50
-25
0
25
50
75
100
125
Temperature (°C)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
Temperature (°C)
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS7250A/B-01 May 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
