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RT8272 Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT8272
Description  3A, 24V, 1.2MHz Step-Down Converter
Download  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8272 Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT8272
6
DS8272-02 March 2011
www.richtek.com
Quiescent Current vs. Temperature
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 12V, VOUT = 3.3V
Current Limit vs. Duty Cycle
3.0
3.4
3.8
4.2
4.6
5.0
5.4
5.8
6.2
10
20
30
40
50
60
70
80
Duty Cycle (%)
UVLO vs. Temperature
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
-50
-25
0
255075
100
125
Temperature (
°C)
Rising
Falling
Load Transient Response
Time (100
μs/Div)
IOUT
(2A/Div)
VOUT
(50mV/Div)
VIN = 12V, VOUT = 3.3V
IOUT = 1.5A to 3A
Load Transient Response
Time (100
μs/Div)
IOUT
(2A/Div)
VOUT
(100mV/Div)
VIN = 12V, VOUT = 3.3V
IOUT = 0A to 3A
Enable Threshold vs. Temperature
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
-50
-25
0
255075
100
125
Temperature (
°C)
Rising
Falling


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