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FA3621 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.

FA3621 Key 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: 10µA(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