AP1513S Ver la hoja de datos (PDF) - Diodes Incorporated.
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AP1513S Datasheet PDF : 8 Pages
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AP1513
PWM CONTROL 2A STEP-DOWN CONVERTER
Typical Application Circuit
VIN
Vcc
Output
ROCSET COCSET
3K Option
AP1513
CIN
OCSET
FB
470uF
EN
CVcc
REN
100K
VSS
0.1uF
CEN
0.1uF
L1
33uH
CC
Optional
D1
SBR2U30P1
VOUT= 5V/2A
RA
6.8K
+C +
- 0.1uF-
RB
1.3K
COUT
470uF
VOUT
L1 Value
Note: VOUT = VFB x (1+RA/RB)
RB =0.7K~5K ohm
Figure 1.
VIN = 12V, IMAX = 2A
2.5V
3.3V
22uH
27uH
5V
33uH
Typical Performance Characteristics
350
345
340
335
330
325
320
315
310
0
AP1513 Vin vs. Frequency
(Vout=3.3V; Iout=0.2A)
2 4 6 8 10 12 14 16 18 20
Vin (V)
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
0.74
0
AP1513 Vin vs. FB
(Vout=3.3V; Iout=0.2A)
2 4 6 8 10 12 14 16 18 20
Vin (V)
AP1513 Rev. 2
5 of 8
www.diodes.com
AUGUST 2007
© Diodes Incorporated
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