Data Sheet
340kHz, 3A Synchronous DC-DC Buck Converter
AP3503F
Typical Performance Characteristics
TA=25ºC, VIN=12V, VOUT=3.3V, unless otherwise noted.
1.4
1.3
1.2
1.1
1.0
0.9
100
90
80
70
60
50
40
30
20
10
VOUT=3.3V, TA=25oC, L=10μH
VIN=5V
VIN=12V
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
-50
-25
0
25
50
75
100
125
150
Case Temperature (oC)
Output Current (A)
Figure 4. Efficiency vs. Output Current
Figure 5. Quiescent Current vs. Case Temperature
1.2
1.1
1.0
0.9
0.8
0.7
0.6
3.6
3.5
3.4
3.3
3.2
3.1
3.0
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
-50
-25
0
25
50
75
100
125
150
Output Current (A)
Case Temperature (oC)
Figure 6. Feedback Voltage vs. Case Temperature
Figure 7. Output Voltage vs. Output Current
Oct. 2012 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
6
DIODES [ DIODES INCORPORATED ]
