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RT8251 Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT8251
Description  5A, 24V, 570kHz Step-Down Converter
Download  16 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8251 Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT8251
6
DS8251-04
February 2013
www.richtek.com
©
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Typical Operating Characteristics
Output Voltag Deviation vs. Load Current
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
0.001
0.01
0.1
1
10
Load Current (A)
VOUT = 3.3V
VIN = 24V
VIN = 12V
VIN = 5V
Reference Voltage vs. Temperature
0.786
0.791
0.796
0.801
0.806
0.811
0.816
-50
-25
0
25
50
75
100
125
Temperature (
°C)
VIN = 12V
Output Voltage Deviation vs. Input Voltage
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
4
6.5
9
11.5
14
16.5
19
21.5
24
Input Voltage (V)
VOUT = 3.3V
IOUT = 5A
IOUT = 3A
IOUT = 0A
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
00.5
1
1.5
22.5
33.544.5
5
Load Current (A)
VIN = 12V
VOUT = 3.3V
VIN = 24V
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Load Current (A)
VOUT = 5V
VIN = 12V
VIN = 24V
Quiescent Current vs. Temperature
0
0.2
0.4
0.6
0.8
1
1.2
-50
-25
0
25
50
75
100
125
Temperature (
°C)
VIN = 12V


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