RT9277A Просмотр технического описания (PDF) - Richtek Technology
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RT9277A Datasheet PDF : 12 Pages
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RT9277A/B
Preliminary
11.986
11.984
Output Voltage vs. Input Voltage
640kHz
11.982
11.980
11.978
11.976
11.974
11.972
VOUT = 12V, IOUT = 1mA
2.5 2.8 3.0 3.3 3.5 3.8 4.0 4.3 4.5 4.8 5.0
Input Voltage (V)
No Load Supply Current vs. Input Voltage
500
640kHz
450
400
350
300
250
200
VOUT = 12V
150
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
1.238
VFB vs. Temperature
1.238
1.237
1.237
1.236
1.236
1.235
1.235
1.234
1.234
VIN = 3.3V, VOUT = 12V
-40 -20
0
20 40 60
Temperature (°C)
1.2MHz
80 100
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8
11.998
11.996
Output Voltage vs. Input Voltage
1.2MHz
11.994
11.992
11.990
11.988
11.986
11.984
VOUT = 12V, IOUT = 1mA
2.5 2.8 3.0 3.3 3.5 3.8 4.0 4.3 4.5 4.8 5.0
Input Voltage (V)
Current Limit vs. Input Voltage
1.8
640kHz
1.7
1.6
1.5
1.4
1.3
VOUT = 12V
1.2
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Frequency vs. Temperature
1300
1.2MHz
1200
1100
1000
900
VIN = 3.3V, VOUT = 12V
800
-40 -20 0
20 40 60 80 100
Temperature (°C)
DS9277A/B-02 March 2007
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