ap1501-12t5r Diodes, Inc., ap1501-12t5r Datasheet - Page 8

• Manufacturer Part Number: ap1501-12t5r
• Description: 150khz, 3a Pwm Buck Dc/dc Converter
• Manufacturer: Diodes, Inc.

Typical Application Circuit
(1) Fixed Type Circuit
(2) Adjustable Type Circuit
(3) Delay Start Circuit
AP1501 Rev. 7
DC Input
Notes:
Capacitor
12V
Cin
5. Suggested DIODES Power Schottky: B340A or PDS340 series.
Capacitor
DC Input
Capacitor
DC Input
12V
Cin
12V
Cin
Vin
1
5
C
0.1uF
SD
AP1501
DELAY
Vin
Vin
R2
-33
R2
4
1
1
FB
5
5
SD
SD
R
AP1501
10K
AP1501
DELAY
3
2
V
V
R2 = 1K ~ 3K
4
Gnd
4
www.diodes.com
out
FB
FB
FB
Output
= 1.23V
= V
3
3
2
2
Gnd
8 of 12
Gnd
FB
150KHz, 3A PWM BUCK DC/DC CONVERTER
×
Output
Output
(1 +
B340A
R2
R1
D1
R1
R1
)
Inductor
(Note 5)
(Note 5)
33uH
D1
D1
L1
47uH
47uH
L1
L1
Capacitor
Capacitor
Capacitor
Co
Co
Output Load
Co
Output Load
Output Load
5V/ 3A
5V/ 3A
3.3V/3A
©
AP1501
Diodes Incorporated
MAY 2008