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AN718 - Powering The Pentium Vre With The Si9145 Voltage Mode Controlled PWM Converter

Key Features

  • requiring an ultra-fast response from the power supply. To obtain higher clock speeds and to enhance manufacturing yields, the Pentium requires specific output voltage levels with tight voltage regulations (Figure 3). Within this stringent voltage regulation limit, no overshoot or undershoot are permitted to exceed the regulation limit, irrespective of their duration. Not surprisingly, these new demands have overwhelmed the capabilities of existing power supply designs based on conventional PWM.

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Datasheet Details

Part number AN718
Manufacturer Vishay
File Size 231.04 KB
Description Powering The Pentium Vre With The Si9145 Voltage Mode Controlled PWM Converter
Datasheet download datasheet AN718 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AN718 Vishay Siliconix AN718 Powering the Pentium™ VRE with the Si9145 Voltage Mode Controlled PWM Converter BENEFITS • First and only Intel-approved switching converter solution to provide static and dynamic voltage regulation for the Pentium VRE microprocessor. • Low cost • Efficiency greater than 89% at 7 A • Eliminates the need for heat sinks • Supplies maximum currents required by P54C • High operating frequency (recommended 375 kHz) allows use of the smallest possible inductors and capacitors, resulting in lowest voltage ripple and best transient response • Easily adjustable output voltage to meet the different specs of P54C family.