Diodes AP65200 - Manual

AP65200
Document number: DS35548 Rev. 6 - 2
1 of 18
www.diodes.com
January 2014
© Diodes Incorporated
NEW PROD
UC
T
AP65200
LIGHT LOAD IMPROVED 2A SYNCH DC/DC BUCK CONVERTER
Description
The AP65200 is a 340kHz switching frequency external compensated
synchronous DC/DC buck converter. It has integrated low R
DSON
high
and low side MOSFETs.
The AP65200 enables continues load current of up to 2A with
efficiency as high as 95%.
The AP65200 implements an automatic custom light load
efficiency improvement algorithm.
The AP65200 features current mode control operation, which enables
fast transient response times and easy loop stabilization.
The AP65200 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 AP65200 is available in a standard Green SO-8, MSOP-8EP,
U-DFN2626-10 and SO-8EP package and is RoHS compliant.
Features
 V
IN
4.7V to 18V
 2A Continuous Output Current, 3A Peak
 Efficiency Up to 95%
 Automated Light Load improvement
 V
OUT
Adjustable to 0.925 to 16V
 340kHz Switching Frequency
 External Programmable Soft-Start
 Enable Pin
 OCP and Thermal Protection
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
Applications
 Gaming Consoles
 Flat Screen TV Sets and Monitors
 Set Top Boxes
 Distributed Power Systems
 Home Audio
 Consumer Electronics
 Network Systems
 FPGA, DSP and ASIC Supplies
 Green Electronics
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
Figure 1 Typical Application Circuit
75
80
85
90
95
100
LOAD CURRENT (A)
Efficiency vs. Load Current
V = 3.3V
OUT
EFF
IC
IE
N
C
Y
(
%
)
2.0 1.8 0.2 0.0 0.6 0.4 1.0 0.8 1.4 1.2 1.6
5V IN
12V
IN