AP1501A Datasheet, PDF (1/12 Pages) Anachip Corp – 150Khz, 5A PWM Buck DC/DC Converter

AP1501A
150KHz, 5A PWM BUCK DC/DC CONVERTER
Features
• Output voltage: 3.3V, 5V, 12V and adjustable output
version
• Adjustable version output voltage range, 1.23V to
37V+4%
• 150Khz +15% fixed switching frequency
• Voltage mode non-synchronous PWM control
• Thermal-shutdown and current-limit protection
• ON/OFF shutdown control input
• Operating voltage can be up to 40V
• Output load current: 5A
• Low power standby mode
• Built-in switching transistor on chip
• Lead Free packages: TO263-5L and TO220-5L(R)
• TO263-5L: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
General Description
The AP1501A series are monolithic ICs that are designed for a
step-down DC/DC converter, and possess the ability to drive a
5A load without additional transistor component. Due to reducing
the number of external component, the board space can be
saved easily. The external shutdown function can be controlled
by logic level and then come into standby mode. The internal
compensation makes feedback control have good line and load
regulation without external design. Regarding protected function,
thermal shutdown is to prevent over temperature operating from
damage, and current limit is against over current operating of the
output switch. The AP1501A series operates at a switching
frequency of 150Khz thus allowing smaller sized filter
components than what would be needed with lower frequency
switching regulators. Other features include a guaranteed +4%
tolerance on output voltage under specified input voltage and
output load conditions, and +15% on the oscillator frequency.
The output version includes fixed 3.3V, 5V, 12V, and an
adjustable type. The packages are available in a standard 5-lead
TO263 and TO220 packages.
Applications
• Simple High-efficiency step-down regulator
• On-card switching regulators
• Positive to negative converter
Ordering Information
AP1501A - XX XXX X - X
Output Version
Blank : Adjustable
33 : 3.3V
50 : 5.0V
12 : 12V
Package
K5 : TO263-5L
T5 : TO220-5L
T5R : TO220-5L(R)
Lead Free
L : Lead Free
G : Green
Packing
U : Tube
13 : Tape & Reel
Device
Package Packaging
Code (Note 2)
Tube
Quantity ^{Part Number}
Suffix
13” Tape and Reel
Quantity
Part Number
Suffix
AP1501A-XXK5L-U
K5
TO263-5L
50
Lead-free
AP1501A-XXK5L-13
K5
TO263-5L
NA
Lead-free
AP1501A-XXK5G-U
K5
TO263-5L
50
-U
NA
NA
NA
800/Tape & Reel
-13
-U
NA
NA
AP1501A-XXK5G-13
K5
TO263-5L
NA
NA
800/Tape & Reel
-13
AP1501A-XXT5L-U
T5
TO220-5L
50
-U
NA
NA
Lead-free _{AP1501A-XXT5RL-U}
T5R TO220-5L(R)
50
-U
NA
NA
Lead-free
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RohS exemptions applied, see EU Directive 2002/95/EC Annex Notes.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1501A Rev. 7
1 of 12
www.diodes.com
SEPTEMBER 2008
© Diodes Incorporated