RT8256 データシートの表示（PDF） - Richtek Technology
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RT8256 Datasheet PDF : 12 Pages
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Typical Operating Characteristics
Efficiency vs. Output Current
100
VIN = 5V
90
80
VIN = 12V
70
60
VIN = 22V
50
40
30
20
10
0
0
VOUT = 3.3V
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Output Current (A)
Reference Voltage vs. Input Voltage
1.226
1.225
1.224
1.223
1.222
1.221
1.220
VIN = 4.75V to 22V, VOUT = 3.3V
4 6 8 10 12 14 16 18 20 22
Input Voltage (V)
450
440
430
420
410
400
390
380
370
360
350
4
Frequency vs. Input Voltage
VOUT = 3.3V, VIN = 4.75V to 22V, IOUT = 0.3A
6 8 10 12 14 16 18 20 22
Input Voltage (V)
DS8256-01 March 2011
RT8256
Output Voltage vs. Output Current
3.300
3.297
3.294
3.291
3.288
3.285
3.282
VIN = 22V
3.279
3.276
VIN = 12V
3.273
3.270
3.267
3.264
3.261
VOUT = 3.3V
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Output Current (A)
3.400
Output Voltage vs. Temperature
3.375
3.350
3.325
3.300
3.275
3.250
3.225
3.200
-50 -25
VIN = 12V, VOUT = 3.3V
0
25 50 75
Temperature (°C)
100 125
450
440
430
420
410
400
390
380
370
360
350
-50
Frequency vs. Temperature
VIN = 12V
VIN = 22V
VOUT = 3.3V, IOUT = 0.3A
-25
0
25 50 75 100 125
Temperature (°C)
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