RT8272 데이터 시트보기 (PDF) - Richtek Technology
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RT8272 Datasheet PDF : 12 Pages
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RT8272
Current Limit vs. Duty Cycle
6.2
5.8
5.4
5.0
4.6
4.2
3.8
3.4
3.0
10 20 30 40 50 60 70 80
Duty Cycle (%)
Quiescent Current vs. Temperature
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
-50 -25
VIN = 12V, VOUT = 3.3V
0
25 50 75
Temperature (°C)
100 125
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
-50
UVLO vs. Temperature
Rising
Falling
-25 0
25 50 75 100 125
Temperature (°C)
Enable Threshold vs. Temperature
1.40
1.30
1.20
Rising
1.10
1.00
0.90
Falling
0.80
0.70
0.60
0.50
0.40
-50 -25
0
25 50 75
Temperature (°C)
100 125
Load Transient Response
VOUT
(50mV/Div)
VIN = 12V, VOUT = 3.3V
IOUT = 1.5A to 3A
Load Transient Response
VOUT
(100mV/Div)
VIN = 12V, VOUT = 3.3V
IOUT = 0A to 3A
IOUT
(2A/Div)
Time (100μs/Div)
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6
IOUT
(2A/Div)
Time (100μs/Div)
DS8272-02 March 2011
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