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6549CBZ - ISL6549CBZ

Overview

® ISL6549 Data Sheet September 22, 2006 FN9168.2 www.DataSheet4U.com Single 12V Input Supply Dual Regulator — Synchronous Rectified Buck PWM and Linear Power Controller The ISL6549 provides the power control and protection for two output voltages in high-performance applications.

The dual-output controller drives two N-Channel MOSFETs in a synchronous rectified buck converter topology and one N-Channel MOSFET in a linear configuration.

The controller is ideal for applications where regulation of both the processing unit and memory supplies is required.

Key Features

  • Single 12V bias supply (no 5V supply is required).
  • Provides two regulated voltages - One synchronous rectified buck PWM controller - One linear controller.
  • Both controllers drive low cost N-Channel MOSFETs.
  • Small converter size - Adjustable frequency 150kHz to 1MHz - Small external component count.
  • Excellent output voltage regulation - Both outputs: ±1% over temperature.
  • 12V down conversion.
  • PWM and linear output voltage range: down.