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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27219-3E
ASSP For Power Supply Applications
Mobile Pentium® II DC/DC Converter IC
MB3871
s DESCRIPTION
The FUJITSU MB3871 is a pulse width modulation (PWM) DC/DC converter IC chip that provides a selection of 1.3 V to 2.0 V output voltages for Mobile Pentium® II* CPU’s, using a 4-bit input signal information. The MB3871 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 Mobile Pentium® II power supply systems. * : Pentium is the registered trademark of Intel Corporation.