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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27205-4E
ASSP Power Supplies
BIPOLAR
Switching Regulator Controller
MB3782
s DESCRIPTION
The FUJITSU MB3782 is a PWM-type switching regulator controller, designed with open-collector output for connection to external drive transistors and coils, providing a selection of three types of output voltage: stepup, step-down or inverting (inverting output is available on one circuit only). The MB3782 features identical oscillator output waveforms to enable completely synchronous operation and prevent the occurrence of low-frequency beat between channels. Also, the MB3782 features low power dissipation (2.1 mA typ) and a built-in standby mode (10 µA), making possible the configuration of a wide variety ofDataSheet4U.