Diodes AP6503A Manuel d'utilisateur

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AP6503A
Document number: DS36000 Rev. 2 - 2
1 of 15
www.diodes.com
December 2012
© Diodes Incorporated
NEW PRODUCT
A
P6503A
240kHz 23V 2A SYNCHRONOUS DC/DC BUCK CONVERTER
Description
The AP6503A is a 240kHz switching frequency external compensated
synchronous DC/DC buck converter. It has integrated low R
DSON
high
and low side MOSFETs.
The AP6503A enables continues load current of up to 3A with efficiency
as high as 95%.
The AP6503A features current mode control operation, which enables
fast transient response times and easy loop stabilization.
The AP6503A 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 AP6503A is available in a standard Green SO-8EP package with
exposed PAD for improved thermal performance and is RoHS
compliant.
Features
V
IN
4.75V to 23V
3A continuous Output Current, 4A Peak
V
OUT
adjustable to 0.925 to 20V
240kHz switching frequency
Programmable Soft-Start
Enable pin
Protection
OCP
Thermal Shutdown
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
COMP
SW
GND
BS
EN
FB
SS
( Top View )
1
2
3
4
8
7
6
5
IN
SO-8EP
Figure 1. Package Pin Out
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 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 2. Typical Application Circuit
LOAD CURRENT (A)
Efficiency vs. Load Current
EFFI
C
IEN
C
Y (%)
0123
V = 12V
IN
V = 5V
IN
V = 3.3V
L = 10µH
OUT
40
50
60
70
80
90
10
0
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Résumé du contenu

Page 1 - AP6503A

AP6503A Document number: DS36000 Rev. 2 - 2 1 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A240kHz 23V 2A SYNCHRONOUS

Page 2

AP6503A Document number: DS36000 Rev. 2 - 2 10 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Application Information

Page 3 - (Note 7) (@T

AP6503A Document number: DS36000 Rev. 2 - 2 11 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Application Information

Page 4

AP6503A Document number: DS36000 Rev. 2 - 2 12 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Application Information

Page 5 - © Diodes Incorporated

AP6503A Document number: DS36000 Rev. 2 - 2 13 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Ordering Information A

Page 6 - EFFICIENCY (

AP6503A Document number: DS36000 Rev. 2 - 2 14 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Suggested Pad Layout P

Page 7

AP6503A Document number: DS36000 Rev. 2 - 2 15 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A IMPORTANT NOTICE DIOD

Page 8 - Current Limit Protection

AP6503A Document number: DS36000 Rev. 2 - 2 2 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Pin Descriptions Pin N

Page 9

AP6503A Document number: DS36000 Rev. 2 - 2 3 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Absolute Maximum Rating

Page 10 - Compensation Components

AP6503A Document number: DS36000 Rev. 2 - 2 4 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Electrical Characterist

Page 11

AP6503A Document number: DS36000 Rev. 2 - 2 5 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Typical Performance Gra

Page 12

AP6503A Document number: DS36000 Rev. 2 - 2 6 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Typical Performance Gra

Page 13 - 13 : Tape & Reel

AP6503A Document number: DS36000 Rev. 2 - 2 7 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Typical Performance Cha

Page 14

AP6503A Document number: DS36000 Rev. 2 - 2 8 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Application Information

Page 15 - NEW PRODUCT

AP6503A Document number: DS36000 Rev. 2 - 2 9 of 15 www.diodes.com December 2012© Diodes Incorporated NEW PRODUCT AP6503A Application Information

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