RT8251 查看數據表（PDF） - Richtek Technology
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RT8251 Datasheet PDF : 16 Pages
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RT8251
Typical Operating Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. Load Current
VIN = 12V
VIN = 24V
VOUT = 3.3V
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Load Current (A)
Output Voltag Deviation vs. Load Current
2
VIN = 24V
1.5 VIN = 12V
1 VIN = 5V
0.5
0
-0.5
-1
-1.5
-2
0.001
0.01
0.1
VOUT = 3.3V
1
10
Load Current (A)
Quiescent Current vs. Temperature
1.2
1
0.8
0.6
0.4
0.2
0
-50 -25
VIN = 12V
0
25 50 75
Temperature (°C)
100 125
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
6
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. Load Current
VIN = 12V
VIN = 24V
VOUT = 5V
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Load Current (A)
Output Voltage Deviation vs. Input Voltage
2
IOUT = 5A
1.5 IOUT = 3A
1 IOUT = 0A
0.5
0
-0.5
-1
-1.5
VOUT = 3.3V
-2
4 6.5 9 11.5 14 16.5 19 21.5 24
Input Voltage (V)
Reference Voltage vs. Temperature
0.816
0.811
0.806
0.801
0.796
0.791
0.786
-50 -25
VIN = 12V
0
25 50 75
Temperature (°C)
100 125
is a registered trademark of Richtek Technology Corporation.
DS8251-04 February 2013
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