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MB3885 - 1-channel DC/DC Converter

Description

The MB3885 is a 1-channel DC/DC converter IC using pulse width modulation (PWM) and synchronous rectification, designed for down conversion applications.

This device is a power supply with high output drive capacity.

Synchronous rectification also provides for high efficiency.

Features

  • Synchronous rectification for high efficiency Supply voltage range : 5.5 V to 18 V Built-in high-precision reference voltage circuit : 2.5 V ± 1% Error Amp. threshold voltage : 1.25 V ± 1% (0 °C to 85 °C) Oscillator frequency range : 10 kHz to 500 kHz Built-in soft start circuit with error Amp. input control Totem pole type output for N-ch MOSFET s.

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Full PDF Text Transcription

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FUJITSU SEMICONDUCTOR DATA SHEET DS04-27227-1E ASSP For Power Management Applications 1-channel DC/DC Converter IC with Synchronous Rectifier MB3885 s DESCRIPTION The MB3885 is a 1-channel DC/DC converter IC using pulse width modulation (PWM) and synchronous rectification, designed for down conversion applications. This device is a power supply with high output drive capacity. Synchronous rectification also provides for high efficiency. In addition, a 5 V regulator is built in to reduce the number of system components. The result is an ideal built-in power supply for driving products with high speed CPU’s such as home TV game devices and notebook PC’s. s FEATURES • • • • • • • Synchronous rectification for high efficiency Supply voltage range : 5.
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