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AP3422 Datasheet(PDF) 6 Page - BCD Semiconductor Manufacturing Limited

Part # AP3422
Description  Dual 1.1MHz, 800mA Synchronous 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

AP3422 Datasheet(HTML) 6 Page - BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet
Dual 1.1MHz, 800mA Synchronous DC-DC Buck Converter
AP3422
Sep. 2011 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
6
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0.8
0.9
1.0
1.1
1.2
1.3
1.4
Input Voltage (V)
V
IN
=3.6V
V
OUT1
=1.8V
I
OUT
=0A
-60
-40
-20
0
20
40
60
80
100
120
140
160
0.2
0.3
0.4
0.5
0.6
0.7
V
IN
=3.6V
V
FB
=0.55V
Temperature (
oC)
-60
-40
-20
0
20
40
60
80
100
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V
IN
=3.6V
V
FB
=0.55V
Temperature (
OC)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V
IN
=3.6V
V
OUT1
=1.8V
Output Current (A)
Typical Performance Characteristics
L1=L2=10
μH, CIN1=CIN2=COUT1=COUT2=10μF, TA=25 ºC, unless otherwise noted.
Figure 4. Frequency vs. Input Voltage
Figure 5. Supply Current vs. Temperature
Figure 6. Current Limit vs. Temperature
Figure 7. Output Voltage vs. Output Current


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