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SM8303 Datasheet(PDF) 5 Page - SamHop Microelectronics Corp.

Part # SM8303
Description  150KHz, 3A PWM Buck Switching Regulator
PDF  11 Pages
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Manufacturer  SAMHOP [SamHop Microelectronics Corp.]
Direct Link  http://www.samhop.com.tw
Logo SAMHOP - SamHop Microelectronics Corp.

SM8303 Datasheet(HTML) 5 Page - SamHop Microelectronics Corp.

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SAMHOP Microelectronics Corp.
SM8303
150KHz, 3A PWM Buck Switching Regulator
5
V1.0 May 17 ,2007
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
4.90
4.95
5.00
5.05
5.10
-50-25
0
25
5075
100 125
V
IN =20V, I LOAD=3A
Normalized at T
J=25
oC
JUNCTION TEMPERATURE(oC)
Output current Io (A)
Switch Current Limit
0.0
5.0
10.0
15.0
20.0
25.0
-50
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE(oC)
Operating Quiescent Current
JUNCTION TEMPERATURE(oC)
Efficiency
70
75
80
85
90
95
810
15
20
25
30
35
40
5V
3.3V
3A Load
1.2
1.3
1.4
1.5
1.6
1.7
2.0
3
45
SWITCH CURRENT(A)
1
2
3
1 : -40 oC
2 : 25 oC
3 : 125 oC
Switch Saturation Voltage
0.0
2.0
4.0
6.0
8.0
01
2
3
4
5
6
7
SUPPLY VOLOTAGE (V)
0.0
40.0
80.0
100.0
130.0
200.0
Shutdown Quiescent Current
10
20
30
40
V
ON/OFF=5V
1 : -40 oC
2 : 25 oC
3 : 125 oC
1
3
2
Switch ON
Switch OFF
100
=10V
VIN
20V 40V



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