Ap1533, Typical performance characteristics, Pwm control 1.8a step-down converter – Diodes AP1533 User Manual
Page 5
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AP1533
PWM CONTROL 1.8A STEP-DOWN CONVERTER
AP1533 Rev. 4
5 of 9
JULY 2009
DS31192
www.diodes.com
©
Diodes Incorporated
Typical Performance Characteristics
(Continued)
V
IN
vs. Frequency
(V
OUT
=3.3V; I
OUT
=0.2A)
300
302
304
306
308
310
312
314
316
318
320
0
2
4
6
8
10 12 14 16 18 20 22 24
V
IN
(V)
F
OS
C
(k
H
z)
V
IN
vs. V
FB
(V
OUT
=3.3V; I
OUT
=0.2A)
0.780
0.785
0.790
0.795
0.800
0.805
0.810
0.815
0.820
0
2
4
6
8
10 12 14 16 18 20 22 24
V
IN
(V)
V
FB
(V
)
Line Regulation
(V
OUT
=3.3V; I
OUT
=0.2A)
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
0
2
4
6
8
10 12 14 16 18 20 22 24
V
IN
(V)
V
OU
T
(V
)
Load Regulation
(V
IN
=12V)
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
0
0.5
1
1.5
2
I
OUT
(A)
V
OU
T
(V
)
Efficiency
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0
0.5
1
1.5
2
I
OUT
(A)
E
ffi
ci
e
n
cy
(
%
)
VOUT=3.3V
VOUT=5V
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