Diodes AP65403 Manuel d'utilisateur

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AP65403
Document number: DS37126 Rev. 1 - 2
1 of 15
www.diodes.com
March 2014
© Diodes Incorporated
A
P65403
LIGHT LOAD IMPROVED 4A, 750kHz SYNCH DC/DC BUCK CONVERTER
Description
The AP65403 is a 750kHz switching frequency external compensated
synchronous DC/DC buck converter. It has integrated low R
DSON
high
and low side MOSFETs.
The AP65403 enables continues load current of up to 4A with
efficiency as high as 96%.
The AP65403 implements an automatic custom light load efficiency
improvement algorithm.
The AP65403 features current mode control operation, which enables
fast transient response times and easy loop stabilization.
The AP65403 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 AP65403 is available in a standard Green SO-8EP package and
is RoHS compliant.
Features
V
IN
4.75V to 17V
4A Continuous Output Current, 7A Peak
Efficiency Up to 96%
Automated Light Load improvement
V
OUT
Adjustable to 2.5 to 12V
750kHz Switching Frequency
External Programmable Soft-Start
Enable Pin
OCP with Hiccup 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
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Résumé du contenu

Page 1 - AP65403

AP65403 Document number: DS37126 Rev. 1 - 2 1 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403LIGHT LOAD IMPROVED 4A, 750kHz SYNCH DC/D

Page 2

AP65403 Document number: DS37126 Rev. 1 - 2 10 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Application Information (cont.) Compens

Page 3 - (Note 7) (@T

AP65403 Document number: DS37126 Rev. 1 - 2 11 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403Application Information (cont.) Inductor

Page 4

AP65403 Document number: DS37126 Rev. 1 - 2 12 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403Application Information (cont.) PC Boar

Page 5

AP65403 Document number: DS37126 Rev. 1 - 2 13 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Ordering Information Part Numbe

Page 6

AP65403 Document number: DS37126 Rev. 1 - 2 14 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Package Outline Dimensions (All dimensi

Page 7

AP65403 Document number: DS37126 Rev. 1 - 2 15 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 IMPORTANT NOTICE DIODES INCORPORATED

Page 8

AP65403 Document number: DS37126 Rev. 1 - 2 2 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Pin Descriptions Pin Name Pin Number

Page 9

AP65403 Document number: DS37126 Rev. 1 - 2 3 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Absolute Maximum Ratings (Note 4) (@TA =

Page 10 - Inductor

AP65403 Document number: DS37126 Rev. 1 - 2 4 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Electrical Characteristics (@TA = +25°C,

Page 11 - ESR*IVout

AP65403 Document number: DS37126 Rev. 1 - 2 5 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Typical Performance Characteristics (@TA

Page 12 - External Bootstrap Diode

AP65403 Document number: DS37126 Rev. 1 - 2 6 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403Typical Performance Characteristics (cont

Page 13 - ( Top View )

AP65403 Document number: DS37126 Rev. 1 - 2 7 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Typical Performance Characteristics (con

Page 14 - Bottom View

AP65403 Document number: DS37126 Rev. 1 - 2 8 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Application Information Theory of Operat

Page 15 - LIFE SUPPORT

AP65403 Document number: DS37126 Rev. 1 - 2 9 of 15 www.diodes.com March 2014© Diodes Incorporated AP65403 Application Information (cont.) Curren

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