Preliminary datasheet, Typical performance characteristics, Iv v r – Diodes AP3203 User Manual
Page 6: 12v, v
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
T
A
=25
ºC
, V
IN
=12V, V
OUT
=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
Q
u
ie
sc
e
n
t Current
(m
A)
Temperature (
o
C)
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
O
u
tput
Volt
age
(V
)
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
F
eedba
c
k
V
o
lage (
V
)
Temperature (
o
C)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
10
20
30
40
50
60
70
80
90
100
E
ffi
ci
e
n
c
y (
%
)
Output Current (A)
V
IN
=12V
V
IN
=5V