AP1509-12SL-13 Diodes Inc, AP1509-12SL-13 Datasheet - Page 2

• Manufacturer Part Number: AP1509-12SL-13
• Description: IC CONV DC/DC SD 2A 12V 8-SOIC
• Manufacturer: Diodes Inc
• Type: Step-Down (Buck)r

Specifications of AP1509-12SL-13

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 12V
• Current - Output: 2A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 22 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Output Voltage: 12 V
• Switching Frequency: 150 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 0 % to 100 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Typical Application Circuit
(1) Fixed Type Circuit
(2) Adjustable Type Circuit
(3) Delay Start Circuit
AP1509
Document number: DS31016 Rev. 4 - 2
DC Input
DC Input
Capacitor
Capacitor
DC Input
Capacitor
12V
12V
12V
C
C
C
IN
IN
IN
R2 1K
R2 1K
C
0.1uF
R
DELAY
10K
DELAY
V
V
V
IN
IN
IN
1
1
4
4
1
4
SD
SD
SD
AP1509-
AP1509
5
5
AP1509
5
GND
GND
GND
33
3
6
6
6
3
3
GND
GND
GND
FB
FB
FB
V
7
7
OUT
7
GND
GND
GND
www.diodes.com
2
R2 = 1K ~ 3K
8
V
2
= V
2
8
8
GND
FB
GND
GND
2 of 13
Output
FB
Output
= 1.23V
Output
150KHz, 2A PWM BUCK DC/DC CONVERTER
×
(1 +
Schottky Diode
R1 1K
R1 1K
R2
R1
Schottky
Schottky
Diode
Diode
D1
D1
)
D1
Inductor
Inductor
39uH
39uH
Inductor
47uH
L1
L1
L1
Capacitor
Capacitor
Capacitor
Co
Output Load
Output Load
Co
Co
2.5V/2A
2.5V/2A
Output Load
3.3V/2A
AP1509
© Diodes Incorporated
June 2010