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MB3881 Datasheet 8-ch DC/DC Converter

Manufacturer: Fujitsu Semiconductor Limited

General Description

The MB3881 a step-up/step-down type of 8-channel, DC/DC converter IC.

It uses pulse width modulation (PWM) and synchronous rectification, designed for low voltage, high efficiency, and compactness.

This IC is ideal for down conversion and up/down conversion (employing a step-up/step-down Zeta system enabling free I/O setting).

Overview

FUJITSU SEMICONDUCTOR DATA SHEET DS04-27224-1E ASSP For Power Management Applications 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down.

Key Features

  • Supporting the step-up/step-down Zeta methods (CH1 to CH7) Supporting synchronous rectification (CH1, CH2) Low start-up voltage : 1.8 V (CH8) Power-supply voltage range : 4 V to 13 V (CH1 to CH7) Built-in high-precision reference voltage generator : 2.5 V ± 1% Oscillation frequency range : 100 kHz to 800 kHz Built-in triangular wave oscillator capable of external synchronization Error amplifier output for soft start.