IRVRM2

IRVRM2 Datasheet

IRVRM2

Part	Datasheet
IRVRM2	IRVRM2 (pdf)

PDF Datasheet Preview
PD-6.088 IRVRM2 Pentium II1 Power Supply Design Specification The new IRVRM2 offers the power supply designer a complete turnkey solution for DC/DC converters required to power Intel’s new Pentium II1 microprocessor. A synchronous buck regulator topology operating at 200kHz is employed and achieves excellent efficiency with very fast transient load response and tight output voltage regulation. The new 20V low Vth HEXFET Power MOSFET D2Pak is used in the synchronous circuitry to reduce board temperature and assembly costs while improving circuit efficiency through reduced RDS on . Complete performance characterization along with a detailed schematic, bill-of-materials, and PCB layout are offered to reduce the customer’s design time and effort. Purpose This is a production-ready design. It has been thoroughly tested for performance against the Intel Pentium II1 233/ 266MHz power specification, and evaluated for manufacturability by a high volume manufacturer. This design will not be manufactured by International Rectifier. Its purpose is to simplify the design and qualification process for our customers. Fig IRVRM2 Key Features • Meets or exceeds all Intel 233/266MHz Pentium II1 requirements • 12.7A continuous output • to 3.5V digitally selectable output • 30A/µS transient load response capability • Short circuit protected • Surface Mount MOSFETs eliminate heatsinks • >80% Efficiency • Design kit available IRVRM2 Web Site This design may be downloaded in two formats at IR’s web site One is PDF format for on screen viewing or printing, the other is in native format so that you many manufacture the design if desired. Floppy Disk The design is also available on floppy disk. As on our web site, the floppy version contains two formats, PDF and native format. Demo Boards Completed boards are available through your local IR sales office and distribution. Support E-mail Chris Davis at for support of this design. Contents Specifications ------------------------------------- 2 Schematic Diagram ------------------------------- 3 Bill of Materials ----------------------------------- 4 Inductor Specifications --------------------------- 5 Assembly Options -------------------------------- 5 Static Performance ------------------------------- 6 Dynamic Performance ---------------------------- 6 Copyright Restriction This design may be used for production or evaluation purposes under the condition that all IR labeling and identification marks remain on all boards produced using this design, or as otherwise agreed to in writing by International Rectifier. 1 A registered trademark of Intel Corporation International Rectifier, 1997 International Rectifier Specifications Absolute Maximum Ratings Parameter 5 volt input 12 volt input Continuous output current Ambient Temperature Table 1 Max Units Conditions / Description V A Pulse width > 100ms 60 ºC Electrical Input Specifications Parameter Min Typ 5 volt input 5Vin 5 volt input current 12 volt input 12Vin 12 volt input current Max 10 60 Units V A V mA Conditions / Description Supply meet all output specifications All line and load conditions Supply meet all output specifications All line and load conditions

PDF Datasheet Preview

PD-6.088

IRVRM2

Pentium II1 Power Supply Design Specification

The new IRVRM2 offers the power supply designer a complete turnkey solution for DC/DC converters required to power Intel’s new Pentium II1 microprocessor. A synchronous buck regulator topology operating at 200kHz is employed and achieves excellent efficiency with very fast transient load response and tight output voltage regulation.

The new 20V low Vth HEXFET Power MOSFET D2Pak is used in the synchronous circuitry to reduce board temperature and assembly costs while improving circuit efficiency through reduced RDS on . Complete performance characterization along with a detailed schematic, bill-of-materials, and PCB layout are offered to reduce the customer’s design time and effort.

Purpose

This is a production-ready design. It has been thoroughly tested for performance against the Intel Pentium II1 233/ 266MHz power specification, and evaluated for manufacturability by a high volume manufacturer.

This design will not be manufactured by International Rectifier. Its purpose is to simplify the design and qualification process for our customers.

Fig IRVRM2

Key Features
• Meets or exceeds all Intel 233/266MHz

Pentium II1 requirements
• 12.7A continuous output
• to 3.5V digitally selectable output
• 30A/µS transient load response capability
• Short circuit protected
• Surface Mount MOSFETs eliminate heatsinks
• >80% Efficiency
• Design kit available IRVRM2

Web Site This design may be downloaded in two formats at IR’s web site One is PDF format for on screen viewing or printing, the other is in native format so that you many manufacture the design if desired.

Floppy Disk The design is also available on floppy disk. As on our web site, the floppy version contains two formats, PDF and native format.

Demo Boards Completed boards are available through your local IR sales office and distribution.

Support E-mail Chris Davis at for support of this design.

Contents

Specifications ------------------------------------- 2 Schematic Diagram ------------------------------- 3 Bill of Materials ----------------------------------- 4 Inductor Specifications --------------------------- 5 Assembly Options -------------------------------- 5 Static Performance ------------------------------- 6 Dynamic Performance ---------------------------- 6

Copyright Restriction

This design may be used for production or evaluation purposes under the condition that all IR labeling and identification marks remain on all boards produced using this design, or as otherwise agreed to in writing by International Rectifier.
1 A registered trademark of Intel Corporation

International Rectifier, 1997

International Rectifier

Specifications

Absolute Maximum Ratings

Parameter
5 volt input
12 volt input

Continuous output current

Ambient Temperature

Table 1

Max Units Conditions / Description V A Pulse width > 100ms 60 ºC

Electrical Input Specifications

Parameter

Min Typ
5 volt input 5Vin
5 volt input current
12 volt input 12Vin
12 volt input current

Max 10 60

Units V A V mA

Conditions / Description Supply meet all output specifications All line and load conditions Supply meet all output specifications All line and load conditions

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived IRVRM2 Datasheet file may be downloaded here without warranties.

Datasheet ID: IRVRM2 639112