Diodes AP1520 - Manual (Page 5)

AP1520
PWM CONTROL 2A STEP-DOWN CONVERTER
AP1520 Rev. 5 5 of 9 JULY 2009
DS31174 www.diodes.com © Diodes Incorporated
Typical Performance Characteristics
AP1520 Vin vs. Frequency
(Vout=3.3V; Iout=0.2A)
310
315
320
325
330
335
340
345
350
3.6 4 6 8 10 12 14 16 18
Vin (V)
Fos
c (
kHz)
AP1520 Vin vs. FB
(Vout=3.3V; Iout=0.2A)
0.74
0.75
0.76
0.77
0.78
0.79
0.80
0.81
0.82
0.83
0.84
3.6 4 6 8 10 12 14 16 18
Vin (V)
FB (V)
AP1520 Line Regulation
(Vin=12V; Iout=0.2A)
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.6 4 6 8 10 12 14 16 18
Vin (V)
V
out (V
)
5.00
5.01
5.02
5.03
5.04
5.05
5.06
5.07
5.08
5.09
5.10
0.0 1.0 2.0 3.0 4.0
Iout (A)
Vout (A)
AP1520 Load Regulation
(Vin=12V)
AP1520 Efficiency
0
10
20
30
40
50
60
70
80
90
100
0.0 0.5 1.0 1.5 2.0
Iout (A)
Effic
ienc
y (%)
Vout:5.0V
Vout:3.3V