RT9278 Просмотр технического описания (PDF) - Richtek Technology
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RT9278 Datasheet PDF : 13 Pages
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Preliminary
RT9278
Typical Operating Characteristics
Frequency vs. Temperature
700
680
660
640
620
600
VDD = 3.3V
580
-40 -20 0 20 40 60 80 100 120 140 160 180
Temperature (°C)
Reference Voltage vs. Temperature
0.804
0.803
0.802
0.801
0.8
0.799
0.798
0.797
VDD = 3.3V
0.796
-40 -20 0 20 40 60 80 100 120 140 160 180
Temperature (°C)
Efficiency vs. Output Current
100
VOUT = 3.3V
90
80
VIN = 3.0V
70
VIN = 2.5V
60
VIN = 2.0V
VIN = 1.5V
50
40
30
20
10
0
1
10
100
1000
Output Current (mA)
Input Voltage vs. Output Voltage
3.350
3.325
3.300
3.275
3.250
3.225
VOUT = 3.3V
3.200
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Input Voltage (V)
Efficiency vs. Output Current
100
VOUT = 5.0V
90
80
70
VIN = 4.5V
60
VIN = 4.0V
VIN = 3.5V
50
VIN = 3.0V
VIN = 2.5V
40
VIN = 2.0V
30
VIN = 1.5V
20
10
0
1
10
100
1000
Output Current (mA)
Input Voltage vs. Output Voltage
5.150
5.100
5.050
5.000
4.950
4.900
VOUT = 5.0V
4.850
1.6 11.9.9235 2.25 22.5.5785 2.9 33..22235 3.55 33.8.8785 4.2
Input Voltage (V)
DS9278-04 August 2007
www.richtek.com
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