AP6507
500 kHz 18V 3A SYNCHRONOUS DC/DC BUCK CONVERTER
AP6507
Document number: DS33435 Rev. 3 - 2
1 of 13
www.diodes.com
October 2011
© Diodes Incorporated
NEW PRODUCT
Description
The AP6507 is a 500kHz switching frequency internal
compensated synchronous DCDC buck converter. It has
integrated compensation, and low R
DSON
high and low side
MOSFETs.
The AP6507 enables continues load current of up to 3A with
efficiency as high as 93%.
The AP6507 features current mode control operation, which
enables fast transient response times and easy loop
stabilization.
The AP6507 simplifies board layout and reduces space
requirements with its high level of integration and minimal
need for external components, making it ideal for distributed
power architectures.
The AP6507 is available in a standard Green SO-8EP
package with exposed PAD for improved thermal
performance and is RoHS compliant.
Pin Assignments
Features
• V
IN
4.5V to 18V
• V
OUT
adjustable to 0.8V
• 500kHz switching frequency
• Enable pin
• Protection:
o OCP
o Thermal Shutdown
• Lead Free Finish/ RoHS Compliant (Note 1)
Applications
• Gaming Consoles
• TV sets and Monitors
• Set Top Boxes
• Distributed power systems
• Home Audio
• Consumer electronics
Note: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html
.
Typical Application Circuit
FBSW
BST
IN
V
CC
EN
GND
(Top View)
1
2
3
4
8
7
6
5
SW
SO-8EP
40
50
60
70
80
90
100
0
2
1
3
LOAD CURRENT (A)
Efficiency vs. Load Current
V = 12V
V = 5V
IN
IN
V = 2.5V
OUT
E
I
IEN
(%)
