AP1501-33K5L-U Diodes Inc, AP1501-33K5L-U Datasheet - Page 8

• Manufacturer Part Number: AP1501-33K5L-U
• Description: IC CONV DC/DC 3.0A 3.3V TO263-5
• Manufacturer: Diodes Inc
• Type: Step-Down (Buck)r

Specifications of AP1501-33K5L-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 ~ 40 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
AP1501 Rev. 11
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
8 of 12
Gnd
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
JANUARY 2009
Diodes Incorporated