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MB3881 - 8-ch DC/DC Converter

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.

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.

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Datasheet preview – MB3881

Datasheet Details

Part number MB3881
Manufacturer Fujitsu Media Devices
File Size 509.79 KB
Description 8-ch DC/DC Converter
Datasheet download datasheet MB3881 Datasheet
Additional preview pages of the MB3881 datasheet.

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Full PDF Text Transcription

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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 MB3881 s 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). The MB3881 can use channel 8 as its own power supply to provide a wide range of supply voltages, allowing itself to operate at low voltage.
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