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RT7280 Datasheet(PDF) 12 Page - Richtek Technology Corporation

Part # RT7280
Description  2A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter
PDF  22 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT7280 Datasheet(HTML) 12 Page - Richtek Technology Corporation

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RT7274/79/80/81
12
DS7274/79/80/81-01 February 2013
www.richtek.com
©
Copyright 2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
VFB Threshold Voltage vs. Temperature
0.740
0.745
0.750
0.755
0.760
0.765
0.770
0.775
0.780
-50
-25
0
25
50
75
100
125
Temperature (°C)
Typical Operating Characteristics
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output Current (A)
VIN = 12V, VOUT = 1.05V, IOUT = 0 to 2A
RT7279/81
RT7274/80
Output Voltage vs. Input Voltage
1.00
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
46
8
10
12
14
16
18
Input Voltage (V)
RT7279
RT7274
RT7280
RT7281
VIN = 4.5V to 18V, VOUT = 1.05V, IOUT = 1A
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output Current (A)
VIN = 12V, VOUT = 5V, IOUT = 0 to 2A
RT7279/81
RT7274/80
Output Voltage vs. Output Current
1.030
1.035
1.040
1.045
1.050
1.055
1.060
1.065
1.070
0
0.2 0.4
0.6 0.8
1
1.2 1.4
1.6 1.8
2
Output Current (A)
VIN = 12V, VOUT = 1.05V, IOUT = 0 to 2A
RT7279/81
RT7274/80
Output Voltage vs. Output Current
4.92
4.94
4.96
4.98
5.00
5.02
5.04
5.06
5.08
5.10
0
0.2 0.4
0.6 0.8
1
1.2 1.4
1.6 1.8
2
Output Current (A)
VIN = 12V, VOUT = 5V, IOUT = 0 to 2A
RT7279/81
RT7274/80



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