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RT8048 Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT8048
Description  3MHz 1A Step-Down Converter
PDF  11 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8048 Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT8048
6
DS8048-01
June 2011
www.richtek.com
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0.10.2
0.3
0.4
0.50.6
0.70.8
0.91.0
Output Current (A)
Typical Operating Characteristics
VOUT = 1.2V, L = 1
μH
VIN = 3.3V
VIN = 5V
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0.10.2
0.30.4
0.50.6
0.70.8
0.91.0
Output Current (A)
VIN = 5V, VOUT = 3.3V, L = 1
μH
Reference Voltage vs. Temperature
0.580
0.585
0.590
0.595
0.600
0.605
0.610
0.615
0.620
-50
-25
0
25
50
75
100
125
Temperature (°C)
Frequency vs. Temperature
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 5V, VOUT = 3.3V, IOUT = 0.3A
Current Limit vs. Input Voltage
0.5
0.8
1.1
1.4
1.7
2.0
2.3
2.6
2.53.0
3.54.0
4.55.0
5.5
Input Voltage (V)
VOUT = 1.2V
Current Limit vs. Temperature
1.1
1.3
1.5
1.7
1.9
2.1
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 5V
VOUT = 1.2
VOUT = 3.3



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