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AP1533 Datasheet(PDF) 5 Page - Diodes Incorporated

Part # AP1533
Description  PWM CONTROL 1.8A STEP-DOWN CONVERTER
PDF  8 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1533 Datasheet(HTML) 5 Page - Diodes Incorporated

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AP1533
PWM CONTROL 1.8A STEP-DOWN CONVERTER
AP1533 Rev. 1
5 of 8
JULY 2007
www.diodes.com
© Diodes Incorporated
Typical Application Circuit
AP1533
+
-
V
SS
EN
C
C
R
A
R
B
D1
FB
Vcc
Output
CVcc
V
OUT=5V/1.8A
V
IN
R
OCSET
OCSET
C
OUT
C
IN
Optional
C
OCSET
C
EN
R
EN
Option
100K
V
OUT = VFB x (1+RA/RB)
R
B= 0.7K~5K ohm
L1
33uH
6.8K
1.3K
3.3K
0.1uF
+
-
C
0.1uF
470uF
470uF
0.1uF
(Note 4)
Note:
4. Suggested DIODES Power Schottky P/N: B340 series or PDS340.
Typical Performance Characteristics
VIN vs. Frequency
(VOUT=3.3V; IOUT=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
VIN (V)
VIN vs. VFB
(VOUT=3.3V; IOUT=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
1012 1416 18 202224
VIN (V)



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