AP1507(2007) 데이터 시트보기 (PDF) - Diodes Incorporated.
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AP1507 Datasheet PDF : 10 Pages
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AP1507
150KHz, 3A PWM BUCK DC/DC CONVERTER
Typical Application Circuit
(1) Fixed Type Circuit
12V
DC Input
Cin
Capacitor
FB
4
1
Vin
AP1507
-33
2
5
3
Output
SD
GND
L1
33uH
Inductor
D1
Schottky
Diode
3.3V/3A
Output Load
Co
Capacitor
(2) Adjustable Type Circuit
R2
R1
12V
DC Input
Cin
Capacitor
FB
4
1 AP1507 2
Vin
5
3
Output
SD
GND
L1
47uH
D1
Schottky Diode
5V/ 3A
Output Load
Co
Capacitor
(3) Delay Start Circuit
12V
DC Input
Cin
Capacitor
Vout = VFB ×
R1
(1 + )
R2
VFB = 1.23V
R2 = 1K ~ 3K
R2
R1
FB
4
Output
1 AP1507 2
Vin
CDELAY 5
3
0.1uF SD
GND
RDELAY
10K
L1
47uH
D1
Schottky Diode
5V/ 3A
Output Load
Co
Capacitor
AP1507 Rev. 1
7 of 10
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
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