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Part: IRP6VRM1
Category:
Description:
Company: International Rectifier Corp.
Datasheet: Download IRP6VRM1 datasheet File size : 52 kB
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PD-6.087
IRP6VRM1
Turnkey Pentium Pro power supply specification
The new IRP6VRM1 offers the power supply designer a complete turnkey solution for DC/DC converters required to power next-generation microprocessors. A synchronous buck regulator topology operating at 200kHz is employed and achieves excellent efficiency with very fast load response and tight output voltage regulation. The new FETKYTM D2Pak is used in the synchronous recirculation circuitry to reduce board space and assembly costs while actually improving circuit efficiency through reduced stray inductance. Complete performance characterization along with a detailed schematic, bill-of-materials, PCB layout and modeling 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 P6 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. Web Site This design may be downloaded in two formats at IR's web site (http://www.irf.com). One is PDF format for on screen viewing or printing, the other is in native format. 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 free to IR customers, and at a reasonable charge to others. Support E-mail Chris Davis at cdavis1@irf.com for support of this design.
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Figure 1. IRP6VRM1
Key Features · Conforms to Intel 200Mhz P6 specification · 12.4 ampere continuous output · 2.0V-to-3.5V digitally selectable output · 30A/µS transient load response capability · Meets Pentium II power requirements · Greater than 90% efficient · Short circuit protected · FETKYTM D2Pak synchronous rectifier · Evaluation kit available: IRP6VRM1-EV
Contents
Specifications ------------------------------------- 2 Schematic Diagram ----------------------------- 3 Bill of Materials --------------------------------- 4 Inductor Specifications ------------------------- 5 Assembly Options ------------------------------- 5 Static Performance ------------------------------ 5 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.
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: A registered trademark of Intel Corporation
© International Rectifier, 1997
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IRP6VRM1 Specifications
Absolute maximum ratings
Parameter 5 volt input 12 volt input Continuous output current Pulsed output current Ambient Temperature Parameter 5 volt input (5Vin) 5 volt input current 12 volt input (12Vin) 12 volt input current Parameter Voltage Range Current Voltage regulation Min 4.75 11.8 Min 2.0 0 -5 Min 10 Typ 5.0 12.0 12.5 Typ -
(Table 1)
Max Units Conditions / Description 6.0 V 15.0 V 12.4 A Pulse width > 100ms 14 A 100ms pulse width, 1% duty factor 60 ºC Max Units 5.25 V 10 A 13.2 V 50 mA Conditions / Description Supply meet all output specifications All line and load conditions Supply meets all output specifications All line and load conditions
Electrical Input Specifications
Power Output Specifications (all specified line and load conditions)
Max Units Conditions / Description 3.5 V Selected by VID[0:3] 12.4 A +5 % Of nominal VID set point. Includes 30A/us transients from min-to-maxto-min load current +1 % Percent of set point. 10 m S Within ±10% of VID set point Conditions / Description Open collector output. Logic 1 output signifies that the voltage output of the module is within ±10% of the selected level Open collector input. Logic 0 disables the module output. Open. Not required in this module since the module has upgrade capability. Open collector input. Selects nominal output voltage as shown in table #2.
VID Codes (Table 2) VccP VID3 VID2 VID1 VID0 2.0 1 1 1 1 2.1 1 1 1 0 2.2 1 1 0 1 2.3 1 1 0 0 2.4 1 0 1 1 2.5 1 0 1 0 2.6 1 0 0 1 2.7 1 0 0 0 2.8 0 1 1 1 2.9 0 1 1 0 3.0 0 1 0 1 3.1 0 1 0 0 3.2 0 0 1 1 3.3 0 0 1 0 3.4 0 0 0 1 3.5 0 0 0 0
Comments No CPU Optional Optional Optional Optional Optional Optional
Ripple voltage Turn on settling time Signal PWRGD
-1 -
1.5
Fig 2. Connector pin out
Digital Input / Output Specifications
Input / Output output
OUTEN UP#
input input
VID[0:3]
input
Output Fault Protection
Parameter Short circuit protection Over voltage protection Min 13 +10 Typ 17 Max Units Conditions / Description 21 A Limits output current during short circuit or overload +20 % Shuts down the power supply when the output voltage exceeds 10%-to20% above the set point
Fig 4. Silk screen bottom view
Fig 3. Silk screen top view
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Schematic Diagram
Fig 5.
IRP6VRM1
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