MB3775 Datasheet - Fujitsu

MB3775 SWITCHING REGULATOR CONTROLLER

1. Reference voltage The reference voltage circuit generates a stable, temperature-compensated 2.5 V reference from Vcc (pin 9) for use by internal circuits. A reference voltage of temperature compensated 1/2 Vref can be obtained to external circuit by Vref terminal (pin 16). 2. Oscillator A trian.

FUJITSU SEMICONDUCTOR DATA SHEET DS04-27204-3E ASSP SWITCHING REGULATOR CONTROLLER MB3775 LOW VOLTAGE DUAL PWM SWITCHING REGULATOR CONTROLLER The MB3775 is a dual pulse-width-modulation control circuit. It contains the basic circuits required for two PWM control circuits. Complete synchronization is obtained by using the same oscillator output waveform. This IC can provide following types of output voltage: step down, step up, and inverter. Power consumption is low, thus the MB3775 is ideal f.

MB3775 Features

* F 330Ω 330Ω 3.9kΩ 120µ H 9.1kΩ V0- (-5V) + 0.1µF 33kΩ 5 6 7 8 MB3775 16 15 14 13 12 11 10 9 16kΩ 120µH 100Ω + V0+ (+12V) 220µF GND 1.9kΩ 0.1µF 33kΩ + 56µH 0.1µF + 470Ω 470Ω 5 0.1µF 6 33kΩ 7 8 MB3775 16 15 14 13 12 11 10 9 1.9kΩ 0.1µF 33kΩ + 0.1µF 2.3kΩ 56µH 220µF -

MB3775_Fujitsu.pdf