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MB3782 Datasheet(PDF) 1 Page - Fujitsu Component Limited. |
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MB3782 Datasheet(HTML) 1 Page - Fujitsu Component Limited. |
1 / 28 page DS04-27205-4E FUJITSU SEMICONDUCTOR DATA SHEET 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: step- up, 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 of high-efficiency, stable power supplies, even with the use of battery power. The MB3782 is an ideal power supply for high-performance portable devices such as video camcorders and cameras. s FEATURES • Wide voltage range (3.6 to 18 V) • Low power dissipation (operating mode: 2.1 mA (typ), standby mode: 10 µA (max) • Wide range of oscillator frequencies, high-frequency capability (1 to 500 kHz) • On-chip timer-latch type short detection circuit • On-chip undervoltage lockout circuit • On-chip 2.50 V reference voltage circuit (1.25 V output available at RT pin) • Dead time adjustment over full duty cycle range • On-chip standby mode (power on/off function) (Continued) s PACKAGE (DIP-20P-M01) Plastic DIP, 20 pin Plastic SOP, 20 pin (FPT-20P-M01) |
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