Diodes AP65400 Manuel d'utilisateur télécharger pdf

AP65400

Document number: DS36497 Rev. 1 - 2

1 of 15

www.diodes.com

April 2014

P65400

LIGHT LOAD IMPROVED 4A SYNCH DC/DC BUCK CONVERTER

Description

The AP65400 is a 340kHz switching frequency external compensated

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

DSON

high

and low side MOSFETs.

The AP65400 enables continues load current of up to 4A with

efficiency as high as 96%.

The AP65400 implements an automatic custom light load

efficiency improvement algorithm.

The AP65400 features current mode control operation, which enables

fast transient response times and easy loop stabilization.

The AP65400 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 AP65400 is available in a standard Green SO-8EP package and

is RoHS compliant.

Features

• V

4.75V to 18V

• 4A Continuous Output Current, 7A Peak

• Efficiency Up to 96%

• Automated Light Load improvement

• V

OUT

Adjustable to 0.8 to 16V

• 340kHz 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 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

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