RT8290 查看數據表（PDF） - Richtek Technology
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RT8290 Datasheet PDF : 12 Pages
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Typical Operating Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. Output Current
VIN = 4.5V
VIN = 12V
VIN = 23V
VOUT = 3.3V
0.5
1
1.5
2
2.5
3
Output Current (A)
0.940
Reference Voltage vs. Temperature
0.935
0.930
0.925
0.920
0.915
0.910
-50 -25
0
25 50 75 100 125
Temperature (°C)
350
345
340
335
330
325
320
315
310
305
300
4
Frequency vs. Input Voltage
VOUT = 3.3V, IOUT = 0A
6 8 10 12 14 16 18 20 22 24
Input Voltage (V)
DS8290-02 March 2011
RT8290
Reference Voltage vs. Input Voltage
0.932
0.930
0.928
0.926
0.924
0.922
0.920
4 6 8 10 12 14 16 18 20 22 24
Input Voltage (V)
Output Voltage vs. Output Current
3.320
3.318
3.315
3.313
3.310
3.308
3.305
3.303
3.300
0
VIN = 4.5V
VIN = 12V
VIN = 23V
VOUT = 3.3V
0.5
1
1.5
2
2.5
3
Output Current (A)
350
345
340
335
330
325
320
315
310
305
300
-50
Frequency vs. Temperature
VIN = 4.5V
VIN = 12V
VIN = 23V
VOUT = 3.3V, IOUT = 0A
-25 0
25 50 75 100 125
Temperature (°C)
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5
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