Diodes AP6503 Manuel d'utilisateur télécharger pdf

AP6503

Document number: DS35077 Rev. 5 - 2

1 of 15

www.diodes.com

January 2013

P6503

340kHz 23V 3A SYNCHRONOUS DC/DC BUCK CONVERTER

Description

The AP6503 is a 340kHz switching frequency external compensated

synchronous DC/DC buck converter. It has integrated low R

DSON

high

and low side MOSFETs.

The AP6503 enables continues load current of up to 3A with

efficiency as high as 95%.

The AP6503 features current mode control operation, which enables

fast transient response times and easy loop stabilization.

The AP6503 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 AP6503 is available in a standard Green SO-8EP package with

exposed PAD for improved thermal performance and is RoHS

compliant.

Features

• V

4.7V to 23V

• 3A continuous Output Current, 4A Peak

• V

OUT

adjustable to 0.925 to 20V

• 340kHz 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

GND

( Top View )

SO-8EP

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 1 Typical Application Circuit

LOAD CURRENT (A)

Efficiency vs. Load Current

EFFI

IEN

Y (

)

0123

V = 12V

V = 5V

V = 3.3V

L = 10µH

OUT

100

1 2 3 4 5 6 ... 14 15

Résumé du contenu

Page 1 - ( Top View )

AP6503 Document number: DS35077 Rev. 5 - 2 1 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503340kHz 23V 3A SYNCHRONOUS DC/DC BUCK CON

Page 2

AP6503 Document number: DS35077 Rev. 5 - 2 10 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Application Information (cont.) Comp

Page 3

AP6503 Document number: DS35077 Rev. 5 - 2 11 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Application Information (cont.) Ind

Page 4 - Electrical Characteristics (V

AP6503 Document number: DS35077 Rev. 5 - 2 12 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Application Information (cont.) PC B

Page 5 - Typical Performance Graphs (V

AP6503 Document number: DS35077 Rev. 5 - 2 13 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Ordering Information AP6503 SP - 13

Page 6 - EFFICIENCY (%)

AP6503 Document number: DS35077 Rev. 5 - 2 14 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Suggested Pad Layout SO-8EP

Page 7

AP6503 Document number: DS35077 Rev. 5 - 2 15 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 IMPORTANT NOTICE DIODES INCORPORATE

Page 8 - Application Information

AP6503 Document number: DS35077 Rev. 5 - 2 2 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Pin Descriptions Pin Number Pin Name

Page 9

AP6503 Document number: DS35077 Rev. 5 - 2 3 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Absolute Maximum Ratings (Note 4) (@T

Page 10

AP6503 Document number: DS35077 Rev. 5 - 2 4 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Electrical Characteristics (VIN = 12V

Page 11 - Output Capacitor

AP6503 Document number: DS35077 Rev. 5 - 2 5 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Typical Performance Graphs (VIN = 12V,

AP6503 Document number: DS35077 Rev. 5 - 2 6 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Typical Performance Graphs (cont.) (VI

Page 13 - 13 : Tape & Reel

AP6503 Document number: DS35077 Rev. 5 - 2 7 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Typical Performance Characteristics (V

Page 14

AP6503 Document number: DS35077 Rev. 5 - 2 8 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Application Information Theory of Op

Page 15

AP6503 Document number: DS35077 Rev. 5 - 2 9 of 15 www.diodes.com January 2013© Diodes Incorporated AP6503 Application Information (cont.) Over

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