Preliminary datasheet, Typical performance characteristics, L1=l2=10 µh, c – Diodes AP3422 User Manual
Page 6: 10 µf, t, 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
Preliminary Datasheet
Dual 1.1MHz, 800mA Synchronous DC-DC Buck Converter AP3422
Feb. 2013 Rev. 1. 2 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
F
requen
c
y
(M
Hz)
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
Supply Current
(m
A)
Temperature (
o
C)
-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
C
u
rrent
Li
m
it (A
)
Temperature (
O
C)
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
O
utput
Voltage (V
)
Output Current (A)
Typical Performance Characteristics
L1=L2=10
µH, C
IN1
=C
IN2
=C
OUT1
=C
OUT2
=10
µF, T
A
=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