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