SM8303 View Datasheet(PDF) - Samhop Mircroelectronics
Part Name
Description
Manufacturer
SM8303 Datasheet PDF : 11 Pages
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SAMHOP Microelectronics Corp.
150KHz, 3A PWM Buck Switching Regulator
SM8303
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
Efficiency
5.10
5.05
VIN =20V, I LOAD=3A
Normalized at TJ=25oC
100
95
3A Load
90
5.00
85
5V
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE(oC)
80
3.3V
75
70
8
10 15 20 25 30 35 40
JUNCTION TEMPERATURE(oC)
Switch Saturation Voltage
1.7
1 : -40 oC
2 : 25 oC
1.6
3 : 125 oC
1.5
1.4
1
1.3
2
3
1.2
2.0
3
4
5
SWITCH CURRENT(A)
Operating Quiescent Current
25.0
20.0
15.0
Switch ON
10.0
Switch OFF
5.0
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE(oC)
Switch Current Limit
8.0
6.0
VIN =10V 20V 40V
4.0
2.0
0.0
0
1 23 4 5
Output current Io (A)
67
200.0
Shutdown Quiescent Current
130.0
100.0
1
2
80.0
3
40.0
VON/OFF=5V
1 : -40 oC
2 : 25 oC
3 : 125 oC
0.0
10
20
30
40
SUPPLY VOLOTAGE (V)
5
V1.0 May 17 ,2007
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