AP1506-33K5L-U Diodes Inc, AP1506-33K5L-U Datasheet - Page 2

• Manufacturer Part Number: AP1506-33K5L-U
• Description: IC CONV DC/DC 3.0A 3.3V TO263-5
• Manufacturer: Diodes Inc
• Type: Step-Down (Buck)r

Specifications of AP1506-33K5L-U

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 3A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 22 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• Output Voltage: 3.3 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
Notes:
AP1506
Document number: DS31015 Rev. 7 - 2
2. For up to 2A = DFLS230L (V
For up to 3A = B340LA, B340LB (V
Capacitor
Capacitor
Capacitor
DC Input
C
DC Input
C
C
DC Input
12V
IN
12V
IN
12V
IN
0.1uF
C
DELAY
V
V
f
IN
V
IN
= 0.42V)
R2
R2
IN
1
1
1
5
5
5
f
SD
SD
SD
= 0.45V)
AP1506
AP1506
R
V
V
R2 = 1K ~ 3K
10K
AP1506
DELAY
out
FB
- 33
4
4
4
FB
FB
= 1.23V
= V
FB
3
3
3
FB
GND
2
GND
2
www.diodes.com
GND
2
×
(1 +
Output
Output
Output
2 of 14
150KHz, 3A PWM BUCK DC/DC CONVERTER
R2
R1
)
Schottky Diode
R1
R1
Schottky Diode
Schottky Diode
D1*
Inductor
D1*
33 uH
D1*
47uH
47uH
L1
L1
L 1
Capacitor
Capacitor
Capacitor
Co
Co
Co
Output Load
Output Load
Output Load
3.3V/3A
5V/ 3A
5V / 3A
AP1506
© Diodes Incorporated
June 2010