Diodes AP1533 - Manual (Page 5)

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