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MB3870 - Pentium II DC/DC Converter

General Description

The FUJITSU MB3870 is a pulse width modulation (PWM) DC/DC converter IC chip that provides a selection of 1.3 V to 3.5 V output voltages for Pentium®

CPU’s, using a 5-bit input signal information.

Key Features

  • a soft-start/discharge control function for ease in designing power supplies in multi-supply systems, making it ideal for Pentium® II power supply systems.
  • : Pentium is the registered trademark of Intel Corporation. s.

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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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FUJITSU SEMICONDUCTOR DATA SHEET DS04-27218-4E ASSP For Power Supply Applications Pentium® II DC/DC Converter IC MB3870 s DESCRIPTION The FUJITSU MB3870 is a pulse width modulation (PWM) DC/DC converter IC chip that provides a selection of 1.3 V to 3.5 V output voltages for Pentium®* CPU’s, using a 5-bit input signal information. The MB3870 utilizes synchronous rectification for high efficiency and features a soft-start/discharge control function for ease in designing power supplies in multi-supply systems, making it ideal for Pentium® II power supply systems. * : Pentium is the registered trademark of Intel Corporation. s FEATURES • • • • • • • • Highly efficient for using synchronous rectification scheme On-chip soft-start/discharge control circuit High precision output voltage: ±1.