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AP1507 Datasheet(PDF) 7 Page - Anachip Corp

Part # AP1507
Description  150KHz, 3A PWM Buck DC/DC Converter
PDF  9 Pages
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Manufacturer  ANACHIP [Anachip Corp]
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Logo ANACHIP - Anachip Corp

AP1507 Datasheet(HTML) 7 Page - Anachip Corp

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AP1507
150KHz, 3A PWM Buck DC/DC Converter
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Oct 29, 2004
7/9
Typical Application Circuit
(1) Fixed Type Circuit
12
3
5
4
12V
DC Input
Cin
Capacitor
FB
SD
D1
Schottky
Diode
Vin
Gnd
Output
AP1507
-33
Co
Capacitor
Inductor
L1
33uH
3.3V/3A
Output Load
(2) Adjustable Type Circuit
12
3
5
4
12V
DC Input
Cin
Capacitor
FB
SD
D1
Schottky Diode
Vin
Gnd
Output
AP1507
Co
Capacitor
L1
47uH
5V/ 3A
Output Load
R2
R1
Vout = VFB× (1 +
R2
R1
)
VFB = 1.23V
R2 = 1K ~ 3K
(3) Delay Start Circuit
12
3
5
4
12V
DC Input
Cin
Capacitor
FB
SD
D1
Schottky Diode
Vin
Gnd
Output
AP1507
Co
Capacitor
L1
47uH
5V/ 3A
Output Load
R2
R1
C
DELAY
0.1uF
10K
R
DELAY



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