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■ Description

FA3621F is a control IC for 6-channel DC-DC converter. This IC can directly drive a Nch/Pch-MOSFET.

This IC is suitable to reduce converter size because it has many functions in a small package LQFP-48.

■ Features

? 6-channel PWM control with MOSFET direct driving : 5-channel for Pch-MOSFET, 1channel for Nch-MOSFET

? Low input voltage: 4.5V to 20V

? ±1.5 high accuracy bandgap reference

? Low power consumption by means of CDMOS

Standby mode: 10?A(max.)

Operating mode: 6mA(max.)

? Soft start function for each channel

? ON/OFF function for each channel

? Timer latch for short protection

? Overheat protection

? Undervoltage lockout

? Wide range of operation frequency: 50kHz to 1MHz

? Package: LQFP-48(Thin and small)

■ Application

? VTR-camera, digital-steel-camera and portable equipment