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RT7253A Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT7253A
Description  3A, 17V, 340kHz Synchronous Step-Down Converter
PDF  14 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT7253A Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT7253A
6
DS7253A-02 March 2011
www.richtek.com
Typical Operating Characteristics
Reference Voltage vs. Input Voltage
0.780
0.785
0.790
0.795
0.800
0.805
0.810
0.815
0.820
4
6
8
1012
1416
18
Input Voltage (V)
VOUT = 3.3V, IOUT = 0A
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
00.5
11.5
22.5
3
Output Current (A)
VIN = 4.5V
VIN = 12V
VIN = 18V
VOUT = 3.3V
Reference Voltage vs. Temperature
0.780
0.785
0.790
0.795
0.800
0.805
0.810
0.815
0.820
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 12V, VOUT = 3.3V
Frequency vs. Input Voltage
300
310
320
330
340
350
360
370
380
4
6
8
1012
1416
18
Input Voltage (V)
VOUT = 3.3V, IOUT = 0A
Frequency vs. Temperature
300
310
320
330
340
350
360
370
380
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 12V, VOUT = 3.3V, IOUT = 0A
Output Voltage vs. Output Current
3.250
3.260
3.270
3.280
3.290
3.300
3.310
3.320
3.330
3.340
0
0.5
1
1.5
2
2.5
3
Output Current (A)
VIN = 12V
VIN = 17V
VOUT = 3.3V



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