AP1501 查看數據表（PDF） - Diodes Incorporated.
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AP1501 Datasheet PDF : 12 Pages
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AP1501
150KHZ, 3A PWM BUCK DC/DC CONVERTER
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
5.10
5.05
VIN =20V, I LOAD=3A
Normalized at TJ=25oC
5.00
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE( oC)
Efficiency
100
95
3A Load
90
85
80
5V
75
3.3V
70
65
8
10 15 20 25 30 35 40
JUNCTION TEMPERATURE( oC)
Switch Saturation Voltage
1.60
1 : -40 oC
2 : 25 oC
1.40 3 : 125 oC
1.20
1.00
1
0.80
2
3
0.60
0.5
1
2
3
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
5.50
VIN=12V, VOUT=5V
5.00
4.50
4.00
3.50
-50
-25 0 25 50 75 100 125
JUNCTION TEMPERATURE( oC)
200.0
Shutdown Quiescent Current
160.0
120.0
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)
AP1501 Rev. 11
6 of 12
www.diodes.com
JANUARY 2009
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