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AP3203 Datasheet(PDF) 6 Page - BCD Semiconductor Manufacturing Limited

Part # AP3203
Description  380kHz, 3A Asynchronous DC - DC Buck Converter
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP3203 Datasheet(HTML) 6 Page - BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet
380kHz, 3A Asynchronous DC - DC Buck Converter
AP3203
Mar. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
6
Note 2:
2
SW
1
SW
2
SW
1
SW
DSON
I
I
V
V
R
−
−
=
Note 3: Not tested, guaranteed by design.
Typical Performance Characteristics
TA=25ºC, VIN=12V, VOUT=3.3V, unless otherwise noted.
Figure 4. Efficiency vs. Output Current
Figure 5. Quiescent Current vs. Temperature
Figure 6. Output Voltage vs. Output Current
Figure 7. Feedback Voltage vs. Temperature
-60
-40
-20
0
20
40
60
80
100
120
140
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
Temperature (
oC)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
Output Current (A)
-60
-40
-20
0
20
40
60
80
100
120
140
1.10
1.12
1.14
1.16
1.18
1.20
1.22
1.24
1.26
1.28
1.30
Temperature (
oC)
0.00.5
1.01.5
2.0
2.5
3.0
0
10
20
30
40
50
60
70
80
90
100
Output Current (A)
V
IN
=12V
V
IN
=5V


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