AP1507 ANACHIP [Anachip Corp], AP1507 Datasheet - Page 7

• Manufacturer Part Number: AP1507
• Description: 150KHz, 3A PWM Buck DC/DC Converter
• Manufacturer: ANACHIP [Anachip Corp]

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