AP1501AT5R Ver la hoja de datos (PDF) - Anachip Corporation
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AP1501AT5R Datasheet PDF : 12 Pages
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150Khz, 5A PWM Buck DC/DC Converter
Typical Application Circuit
(1) Fixed Type Circuit
12V
DC Input
Cin
Capacitor
FB
4
1
Vin
AP1501A
-33
2
5
3
Output
SD
Gnd
L1
18uH
Inductor
D1
Schottky
Diode
AP1501A
3.3V/5A
Output Load
Co
Capacitor
(2) Adjustable Type Circuit
R2
R1
12V
DC Input
Cin
Capacitor
FB
4
Output
1 AP1501A 2
Vin
5
3
SD
Gnd
L1
22uH
D1
Schottky Diode
5V/ 5A
Output Load
Co
Capacitor
(3) Delay Start Circuit
Vout = VFB × (1 + R1 )
R2
VFB = 1.23V
R2 = 1K ~ 3K
12V
DC Input
Cin
Capacitor
R2
R1
FB
4
Output
1 AP1501A 2
Vin
CDELAY 5
0.1uF SD
3
Gnd
RDELAY
10K
L1
22uH
D1
Schottky Diode
5V/ 5A
Output Load
Co
Capacitor
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Aug 23, 2005
7/12
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