Diodes AP65503 Manuel d'utilisateur télécharger pdf

AP65503

Document number: DS37127 Rev. 1 - 2

1 of 15

www.diodes.com

April 2014

P65503

LIGHT LOAD IMPROVED 5A, 750kHz SYNCH DC/DC BUCK CONVERTER

Description

The AP65503 is a 750kHz switching frequency external compensated

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

DSON

high

and low side MOSFETs.

The AP65503 enables continues load current of up to 5A with

efficiency as high as 96%.

The AP65503 implements an automatic custom light load efficiency

improvement algorithm.

The AP65503 features current mode control operation, which enables

fast transient response times and easy loop stabilization.

The AP65503 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 AP65503 is available in a standard Green SO-8EP package and

is RoHS compliant.

Features

• V

4.75V to 17V

• 5A 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

1 2 3 4 5 6 ... 14 15

Résumé du contenu

Page 1 - AP65503

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Page 8 - Application Information

AP65503 Document number: DS37127 Rev. 1 - 2 2 of 15 www.diodes.com April 2014© Diodes Incorporated AP65503 Pin Descriptions Pin Name Pin Number Fun

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Page 10 - Inductor

AP65503 Document number: DS37127 Rev. 1 - 2 4 of 15 www.diodes.com April 2014© Diodes Incorporated AP65503 Electrical Characteristics (@TA = +25°C,

Page 11 - ESR*IVout

AP65503 Document number: DS37127 Rev. 1 - 2 5 of 15 www.diodes.com April 2014© Diodes Incorporated AP65503 Typical Performance Characteristics (@TA

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Page 14 - Bottom View

AP65503 Document number: DS37127 Rev. 1 - 2 8 of 15 www.diodes.com April 2014© Diodes Incorporated AP65503 Application Information Theory of Operat

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