AP1538 Ver la hoja de datos (PDF) - Diodes Incorporated.
Número de pieza
componentes Descripción
Lista de partido
AP1538 Datasheet PDF : 13 Pages
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Typical Performance Characteristics
AP1538
18V 3A 300KHz BUCK CONVERTER
326
324
322
320
318
316
314
312
310
308
306
0
VIN vs. Frequency
(VOUT = 3.3V, IOUT = 0.2A)
2 4 6 8 10 12 14 16 18
VIN (V)
Line Regulation
3.40
(VOUT = 3.3V, IOUT = 0.2A)
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
0 2 4 6 8 10 12 14 16 18
VIN (V)
100
90
80
70
60
50
40
30
20
10
0
0.0
Efficiency
(VIN = 12V)
VOUT=3.3V
VOUT=5V
1.0
2.0
3.0
IOUT (A)
0.820
0.815
0.810
0.805
0.800
0.795
0.790
0.785
0.780
0
VIN vs. VFB
(VOUT = 3.3V, IOUT = 0.2A)
2 4 6 8 10 12 14 16 18
VIN (V)
Load Regulation
3.35
(VIN = 12V)
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
0.0 0.5 1.0 1.5 2.0 2.5 3.0
IOUT (A)
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
0
Switch Current Limit
(TA = 25C)
ROCSET=6.8k
ROCSET=3.9k
2 4 6 8 10 12 14 16 18
VIN (V)
AP1538 Rev. 5
DS31451
6 of 13
www.diodes.com
OCTOBER 2009
© Diodes Incorporated
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